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Tiberius Brastaviceanu

Action (Stanford Encyclopedia of Philosophy) - 0 views

plato.stanford.edu/action

action theoretical theory paper

shared by Tiberius Brastaviceanu on 21 Sep 11 - Cached
  • intentionally
  • questions about the nature, variety, and identity of action
  • Should we think of the consequences, conventional or causal, of physical behavior as constituents of an action distinct from but ‘generated by’ the movement? Or should we think that there is a single action describable in a host of ways?
  • ...22 more annotations...
  • Donald Davidson
  • an action
  • is something an agent does that was ‘intentional under some description,’
  • there have been many attempts to map the relations between intentions for the future, acting intentionally, and acting with a certain intention.
  • There has been a notable or notorious debate about whether the agent's reasons in acting are causes of the action
  • rendered the action intelligible in his eyes
  • things that merely happen
  • things they genuinely do
  • distinction between
  • the doings, are the acts or actions of the agent
  • what distinguishes an action from a mere happening or occurrence?
  • An agent performs activity that is directed at a goal
  • adopted on the basis of an overall practical assessment of his options and opportunities
  • awareness
  • that he is performing the activity
  • and that the activity is aimed by him at such-and-such a chosen end
  • It is frequently noted that the agent has some sort of immediate awareness of his physical activity and of the goals that the activity is aimed at realizing.
  • ‘knowledge without observation.’
  • It is also important to the concept of ‘goal directed action’ that agents normally implement a kind of direct control or guidance over their own behavior.
  • For many years, the most intensely debated topic in the philosophy of action concerned the explanation of intentional actions in terms of the agent's reasons for acting
  • Davidson and other action theorists defended the position that reason explanations are causal explanations
  • In the foregoing, reference has been made to explanations of actions in terms of reasons, but recent work on agency has questioned whether contemporary frameworks for the philosophy of action have really articulated the way in which an agent's desires and other pro-attitudes have the distinctive force of reasons in the setting of these ordinary explanations
Tiberius Brastaviceanu

Google Apps Script - introduction - 0 views

code.google.com/...guide.html

google script apps Programming javascript tool tools infrastructure development

shared by Tiberius Brastaviceanu on 03 May 11 - Cached
  • control over Google products
  • can access and control Google Spreadsheets and other products
  • scripts
  • ...44 more annotations...
  • run directly on Google servers in order to provide direct access to the products they control.
  • can also use Google Apps Script from Google Sites
  • Google Apps Script Template Gallery
  • Google Apps Script Blog
  • guide contains the information you need to use Google Apps Script, a server-side scripting language, based on JavaScript, that runs on Google's servers alongside Google Apps
  • enable varying degrees of interactivity among the applications
  • easy enough to use that you don't have to be a programmer to create scripts.
  • use it to automate complex tasks within Google Apps
  • You don't have to be a programmer to use Google Apps Script
  • A script is a series of instructions you write in a computer language to accomplish a particular task. You type in the instructions and save them as a script. The script runs only under circumstances you define.
  • The Google Apps Script API provides a set of objects. You can use these objects and their associates methods to access Google Docs and Spreadsheets, Gmail, Google Finance, and other Google applications.
  • To run a script, you must first add the script to a Google Spreadsheet or Google Site using the Script Editor.
  • You can retrieve information from a wide selection of Google Apps and Services and from external sources, including web pages and XML sources. You can use Google Apps Script to create email, spreadsheets, pages on Google Sites, and files in the Google Docs Document List.
  • The instructions in a script are grouped into functions.
  • objects
  • methods
  • for such tasks
  • Create pages on a Google Site
  • Customize a Spreadsheet
  • Send email based on information in a Spreadsheet
  • You can manipulate
  • numeric
  • financial
  • string
  • an XML document
  • controlling data in the following applications
  • Spreadsheets
  • Google Document List
  • Contacts
  • Calendar
  • Sites
  • Google Maps
  • create and display interactive user interface elements
  • interact with relational database management systems
  • create folders, subfolders, and files in the Google Docs document list
  • access to user, session, and browser information
  • access to web services
  • extract data from XML documents and then manipulate that data
  • obtain translations of text from one language to another
  • send email
  • UrlFetch services
  • encode and decode strings and format dates
  • store properties on a per-script and per-user basis
  • create, delete and update contact information for individuals and for groups in Google Contacts
mayssamd

Horizon Europe | European Commission - 1 views

ec.europa.eu/...horizon-europe_en

funding eu greens_for_good

shared by mayssamd on 24 Jun 21 - No Cached
Tiberius Brastaviceanu

The New Normal in Funding University Science | Issues in Science and Technology - 1 views

issues.org/...-in-funding-university-science

open science paper

shared by Tiberius Brastaviceanu on 07 Aug 14 - No Cached
  • Government funding for academic research will remain limited, and competition for grants will remain high. Broad adjustments will be needed
  • he sequester simply makes acute a chronic condition that has been getting worse for years.
  • the federal budget sequester
  • ...72 more annotations...
  • systemic problems that arise from the R&D funding system and incentive structure that the federal government put in place after World War II
  • Researchers across the country encounter increasingly fierce competition for money.
  • unding rates in many National Institutes of Health (NIH) and National Science Foundation (NSF) programs are now at historical lows, declining from more than 30% before 2001 to 20% or even less in 2011
  • even the most prominent scientists will find it difficult to maintain funding for their laboratories, and young scientists seeking their first grant may become so overwhelmed that individuals of great promise will be driven from the field
  • anxiety and frustration
  • The growth of the scientific enterprise on university campuses during the past 60 years is not sustainable and has now reached a tipping point at which old models no longer work
  • Origins of the crisis
  • ederal funding agencies must work with universities to ensure that new models of funding do not stymie the progress of science in the United States
  • The demand for research money greatly exceeds the supply
  • the demand for research funding has gone up
  • The deeper sources of the problem lie in the incentive structure of the modern research university, the aspirations of scientists trained by those universities, and the aspirations of less research-intensive universities and colleges across the nation
  • competitive grants system
  • if a university wants to attract a significant amount of sponsored research money, it needs doctoral programs in the relevant fields and faculty members who are dedicated to both winning grants and training students
  • The production of science and engineering doctorates has grown apace
  • Even though not all doctorate recipients become university faculty, the size of the science and engineering faculty at U.S. universities has grown substantially
  • proposal pressure goes up
  • These strategies make sense for any individual university, but will fail collectively unless federal funding for R&D grows robustly enough to keep up with demand.
  • At the very time that universities were enjoying rapidly growing budgets, and creating modes of operation that assumed such largess was the new normal, Price warned that it would all soon come to a halt
  • the human and financial resources invested in science had been increasing much faster than the populations and economies of those regions
  • growth in the scientific enterprise would have to slow down at some point, growing no more than the population or the economy.
  • Dead-end solutions
  • studies sounded an alarm about the potential decline in U.S. global leadership in science and technology and the grave implications of that decline for economic growth and national security
  • Although we are not opposed to increasing federal funding for research, we are not optimistic that it will happen at anywhere near the rate the Academies seek, nor do we think it will have a large impact on funding rates
  • universities should not expect any radical increases in domestic R&D budgets, and most likely not in defense R&D budgets either, unless the discretionary budgets themselves grow rapidly. Those budgets are under pressure from political groups that want to shrink government spending and from the growth of spending in mandatory programs
  • The basic point is that the growth of the economy will drive increases in federal R&D spending, and any attempt to provide rapid or sustained increases beyond that growth will require taking money from other programs.
  • The demand for research money cannot grow faster than the economy forever and the growth curve for research money flattened out long ago.
  • Path out of crisis
  • The goal cannot be to convince the government to invest a higher proportion of its discretionary spending in research
  • Getting more is not in the cards, and some observers think the scientific community will be lucky to keep what it has
  • The potential to take advantage of the infrastructure and talent on university campuses may be a win-win situation for businesses and institutions of higher education.
  • Why should universities and colleges continue to support scientific research, knowing that the financial benefits are diminishing?
  • esearch culture
  • attract good students and faculty as well as raise their prestige
  • mission to expand the boundaries of human knowledge
  • faculty members are committed to their scholarship and will press on with their research programs even when external dollars are scarce
  • training
  • take place in
  • research laboratories
  • it is critical to have active research laboratories, not only in elite public and private research institutions, but in non-flagship public universities, a diverse set of private universities, and four-year colleges
  • How then do increasingly beleaguered institutions of higher education support the research efforts of the faculty, given the reality that federal grants are going to be few and far between for the majority of faculty members? What are the practical steps institutions can take?
  • change the current model of providing large startup packages when a faculty member is hired and then leaving it up to the faculty member to obtain funding for the remainder of his or her career
  • universities invest less in new faculty members and spread their internal research dollars across faculty members at all stages of their careers, from early to late.
    • Tiberius Brastaviceanu
      Tiberius Brastaviceanu on 07 Aug 14
       
      Sharing of resources, see SENSORICA's NRP
  • national conversation about changes in startup packages and by careful consultations with prospective faculty hires about long-term support of their research efforts
  • Many prospective hires may find smaller startup packages palatable, if they can be convinced that the smaller packages are coupled with an institutional commitment to ongoing research support and more reasonable expectations about winning grants.
  • Smaller startup packages mean that in many situations, new faculty members will not be able to establish a functioning stand-alone laboratory. Thus, space and equipment will need to be shared to a greater extent than has been true in the past.
  • construction of open laboratory spaces and the strategic development of well-equipped research centers capable of efficiently servicing the needs of an array of researchers
  • phaseout of the individual laboratory
  • enhanced opportunities for communication and networking among faculty members and their students
  • Collaborative proposals and the assembly of research teams that focus on more complex problems can arise relatively naturally as interactions among researchers are facilitated by proximity and the absence of walls between laboratories.
  • An increased emphasis on team research
  • investments in the research enterprise
  • can be directed at projects that have good buy-in from the faculty
  • learn how to work both as part of a team and independently
  • Involvement in multiple projects should be encouraged
  • The more likely trajectory of a junior faculty member will evolve from contributing team member to increasing leadership responsibilities to team leader
  • nternal evaluations of contributions and potential will become more important in tenure and promotion decisions.
    • Tiberius Brastaviceanu
      Tiberius Brastaviceanu on 07 Aug 14
       
      Need value accounting system
  • relationships with foundations, donors, state agencies, and private business will become increasingly important in the funding game
  • The opportunities to form partnerships with business are especially intriguing
    • Tiberius Brastaviceanu
      Tiberius Brastaviceanu on 07 Aug 14
       
      The problem is to change the model and go open source, because IP stifles other processes that might benefit Universities!!!
  • Further complicating university collaborations with business is that past examples of such partnerships have not always been easy or free of controversy.
  • some faculty members worried about firms dictating the research priorities of the university, pulling graduate students into proprietary research (which could limit what they could publish), and generally tugging the relevant faculty in multiple directions.
  • developed rules and guidelines to control them
  • University faculty and businesspeople often do not understand each other’s cultures, needs, and constraints, and such gaps can lead to more mundane problems in university/industry relations, not least of which are organizational demands and institutional cultures
    • Tiberius Brastaviceanu
      Tiberius Brastaviceanu on 07 Aug 14
       
      Needs for mechanisms to govern, coordinate, structure an ecosystem -See SENSORICA's Open Alliance model
  • n addition to funding for research, universities can receive indirect benefits from such relationships. High-profile partnerships with businesses will underline the important role that universities can play in the economic development of a region.
  • Universities have to see firms as more than just deep pockets, and firms need to see universities as more than sources of cheap skilled labor.
  • foundations or other philanthropy
  • We do not believe that research proposed and supervised by individual principal investigators will disappear anytime soon. It is a research model that has proven to be remarkably successful and enduring
  • However, we believe that the most vibrant scientific communities on university and college campuses, and the ones most likely to thrive in the new reality of funding for the sciences, will be those that encourage the formation of research teams and are nimble with regard to funding sources, even as they leave room for traditional avenues of funding and research.
Tiberius Brastaviceanu

Promoting and Assessing Value Creation in Networks - P2P Foundation - 1 views

p2pfoundation.net/ing_Value_Creation_in_Networks

value creation networks theory model value system contribution accounting paper

shared by Tiberius Brastaviceanu on 02 Jun 12 - No Cached
  • Promoting and Assessing Value Creation in Networks: A conceptual framework
  • there are three pieces of a CoP
  • the evaluation framework is able to assess the value of each piece
  • ...7 more annotations...
  • The framework itself has five levels
  • The first level—related to the satisfaction level—is called "immediate value" and it assesses what just happened, for example, in a webinar
  • The second level is called "potential value," and I like to think of this as the new knowledge or understanding that is lying latent but ready to be put to use in the future
  • This level looks at change
  • The third level does this, and it is called "applied value" and this is where the model starts to become interesting to CEOs and others
  • hard metrics like reduced development time, improved efficiencies, or financial returns. The fourth level in the framework provides this, and the level is called "realized value."
  • he fifth level is where the community changes as a result of the activity occurring in the first four levels. At this highest level, the framework examines changes in the community—norms, standards, practices, and thought leadership—that has occurred as a result of activity within the community
Kurt Laitner

Asia Times Online :: Nondominium - the Caspian solution - 0 views

www.atimes.com/...MI24Dj01.html

nondominium caspian sea Chris Cook description

shared by Kurt Laitner on 20 Jan 14 - No Cached
  • A Caspian partnership The proposal is that the littoral states should form a Caspian Foundation legal entity, and commit to that entity all existing rights in respect of the use, and the fruits of use (usufruct), of the Caspian Sea, and everything on it, in it, or under it. The Caspian Foundation would act as custodian or steward and the nations would have agreed governance rights of veto. This negative or passive veto right of stewardship is very different from conventional property rights of absolute ownership and temporary use under condominium. Moreover, it does not have the active power of control held under common law by a trustee on behalf of beneficiaries, and the legal complexities and management conflicts which go with it. The Caspian Foundation would be a subscriber to a Caspian Partnership framework agreement between the nations, investors of money or money's worth, and a consortium of service providers. This Caspian Partnership would not be yet another international organization, with everything that goes with that. It would not own anything, employ anyone or contract with anyone: it would simply be an associative framework agreement within which Caspian nations self-organize to the common purpose of the sustainable development of the Caspian Sea.
  • Nondominium - the Caspian solution By Chris Cook Twenty-first century problems cannot be solved with 20th century solutions. Nowhere is that saying so true as in territorial disputes where oil and gas are involved. The riches of the Caspian Sea have been the subject of dispute for years, and relatively simple - but still intractable - binary issues between Iran and Russia are now multiplied by the conflicting claims of what are now five littoral Caspian nations: Azerbaijan, Iran; Kazakhstan; Russia and Turkmenistan. Their claims relate not just to rights on the Caspian Sea surface, but to rights in the sea, and above all to the rights to the treasures that lie under it. There are two 20th century legal approaches: international law //ad information var tf_adModel = "FEV"; var tf_adType = "InBannerVideo"; var tf_commonLocation = "http://cdnx.tribalfusion.com/media/common/expand/"; //leave this variable as it is var tf_cookieFlash = "http://cdnx.tribalfusion.com/media/common/TFSObj_v2s"; var tf_isExpansionHandle = true; var tf_floatAdScriptPath = "http://cdnx.tribalfusion.com/media/common/floating/TF_FloatAdLibrary.js"; var tf_zoomFlash = "http://cdnx.tribalfusion.com/media/common/floating/TFScale_v1"; var tf_banner = { "flag" : "inBanner", "width" : 300, "height" : 250, "widthExpanded" : 600, "heightExpanded" : 450, "widthFloating" : 950, "heightFloating" : 570, "iWin" : [ ], "flashFile" : "http://cdnx.tribalfusion.com/media/4523336/Glow_Banner_Square_Template_V201", extraFlashVars:"tf_showPanelonLoad=true&tf_phase2=false", "video_expand" : "http://cdnx.tribalfusion.com/media/4523336/video.flv", "imageFile" : 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  • A Caspian partnership The proposal is that the littoral states should form a Caspian Foundation legal entity, and commit to that entity all existing rights in respect of the use, and the fruits of use (usufruct), of the Caspian Sea, and everything on it, in it, or under it. The Caspian Foundation would act as custodian or steward and the nations would have agreed governance rights of veto. This negative or passive veto right of stewardship is very different from conventional property rights of absolute ownership and temporary use under condominium. Moreover, it does not have the active power of control held under common law by a trustee on behalf of beneficiaries, and the legal complexities and management conflicts which go with it. The Caspian Foundation would be a subscriber to a Caspian Partnership framework agreement between the nations, investors of money or money's worth, and a consortium of service providers. This Caspian Partnership would not be yet another international organization, with everything that goes with that. It would not own anything, employ anyone or contract with anyone: it would simply be an associative framework agreement within which Caspian nations self-organize to the common purpose of the sustainable development of the Caspian Sea.
  • ...1 more annotation...
  • A Caspian partnership The proposal is that the littoral states should form a Caspian Foundation legal entity, and commit to that entity all existing rights in respect of the use, and the fruits of use (usufruct), of the Caspian Sea, and everything on it, in it, or under it. The Caspian Foundation would act as custodian or steward and the nations would have agreed governance rights of veto. This negative or passive veto right of stewardship is very different from conventional property rights of absolute ownership and temporary use under condominium. Moreover, it does not have the active power of control held under common law by a trustee on behalf of beneficiaries, and the legal complexities and management conflicts which go with it. The Caspian Foundation would be a subscriber to a Caspian Partnership framework agreement between the nations, investors of money or money's worth, and a consortium of service providers. This Caspian Partnership would not be yet another international organization, with everything that goes with that. It would not own anything, employ anyone or contract with anyone: it would simply be an associative framework agreement within which Caspian nations self-organize to the common purpose of the sustainable development of the Caspian Sea.
Kurt Laitner

How Many Kinds of Property are There? - 0 views

www.nakedcapitalism.com/...-kinds-property-two-three.html

property governance paper

shared by Kurt Laitner on 03 Feb 14 - No Cached
  • Whenever a group of people depend on a resource that everybody uses but nobody owns, and where one person’s use effects another person’s ability to use the resource, either the population fails to provide the resource, overconsumes and/or fails to replenish it, or they construct an institution for undertaking and managing collective action.
  • Common-pool resources may be owned by national, regional, or local [1]governments; by [2] communal groups; by [3] private individuals or corporations; or used as open access resources by whomever can gain access
  • Based on her survey, Ostrom distilled this list of common design principles from the experience of successful governance institutions: Clearly defined boundaries. Individuals or households who have rights to withdraw resource units from the CPR must be clearly defined, as must the boundaries of the CPR itself. Congruence between appropriation and provision rules and local conditions. Appropriation rules restricting time, place, technology, and/or quantity of resource units are related to local conditions and to provision rules requiring labour, material, and/or money. Collective-choice arrangements. Most individuals affected by the operational rules can participate in modifying the operational rules [how refreshing. Standing!]. Monitoring. Monitors, who actively audit CPR conditions and appropriator behavior, are accountable to the appropriators or are the appropriators. Graduated sanctions. Appropriators who violate operational rules are likely to be assessed graduated sanctions (depending on the seriousness and context of the offence) by other appropriators, by officials accountable to these appropriators, or by both. Conflict-resolution mechanisms. Appropriators and their officials have rapid access to low-cost local arenas to resolve conflicts among appropriators or between appropriators and officials. Minimal recognition of rights to organize. The rights of appropriators to devise their own institutions are not challenged by external governmental authorities. For CPRs that are parts of larger systems: Nested enterprises. Appropriation, provision, monitoring, enforcement, conflict resolution, and governance activities are organized in multiple layers of nested enterprises.
  • Kurt Laitner on 03 Feb 14
     
    Good review of Ostrom and Bollier's definitions of commons and governance approaches to this property class
  • Tiberius Brastaviceanu on 07 Feb 23
     
    This paper is mostly about commons... the title is misleading.
mayssamd

Applications of distributed ledger technology (DLT) and Blockchain-enabled smart contra... - 2 views

www.sciencedirect.com/...S0926580521004064

IoPA AI smart contract construction paper

shared by mayssamd on 23 Dec 22 - No Cached
  • mayssamd on 23 Dec 22
     
    Traceability concerns "the ability to record all required information relating to that which is under consideration, throughout its entire lifecycle, by means of recorded identifications" A consortium blockchain structure is adopted and supported by smart contracts for compliance code checking to improve construction quality management and better facilitate information sharing and enhanced mutual trust
mayssamd

List of Companies with p2p related practices - 0 views

wiki.p2pfoundation.net/Category:Companies

IoPA list organization p2p

shared by mayssamd on 18 Jan 23 - No Cached
  • mayssamd on 18 Jan 23
     
    The description does say "companies" yet Sensorica is on the list
Kurt Laitner

Smart Contracts - 0 views

www.alamut.com/...smartContracts.html

smart contract cryptography paper

shared by Kurt Laitner on 21 Mar 13 - No Cached
  • Whether enforced by a government, or otherwise, the contract is the basic building block of a free market economy.
  • A smart contract is a set of promises, specified in digital form, including protocols within which the parties perform on the other promises.
  • The basic idea of smart contracts is that many kinds of contractual clauses (such as liens, bonding, delineation of property rights, etc.) can be embedded in the hardware and software we deal with, in such a way as to make breach of contract expensive (if desired, sometimes prohibitively so) for the breacher.
  • ...77 more annotations...
  • A broad statement of the key idea of smart contracts, then, is to say that contracts should be embedded in the world.
  • And where the vending machine, like electronic mail, implements an asynchronous protocol between the vending company and the customer, some smart contracts entail multiple synchronous steps between two or more parties
  • POS (Point of Sale)
  • EDI (Electronic Data Interchange
  • SWIFT
  • allocation of public network bandwidth via automated auctions
  • Smart contracts reference that property in a dynamic, proactively enforced form, and provide much better observation and verification where proactive measures must fall short.
  • The mechanisms of the world should be structured in such a way as to make the contracts (a) robust against naive vandalism, and (b) robust against sophisticated, incentive compatible (rational) breach.
  • A third category, (c) sophisticated vandalism (where the vandals can and are willing to sacrifice substantial resources), for example a military attack by third parties, is of a special and difficult kind that doesn't often arise in typical contracting, so that we can place it in a separate category and ignore it here.
  • The threat of physical force is an obvious way to embed a contract in the world -- have a judicial system decide what physical steps are to be taken out by an enforcement agency (including arrest, confiscation of property, etc.) in response to a breach of contract
  • It is what I call a reactive form of security.
  • The need to invoke reactive security can be minimized, but not eliminated, by making contractual arrangements verifiable
  • Observation of a contract in progress, in order to detect the first sign of breach and minimize losses, also is a reactive form of security
  • A proactive form of security is a physical mechanism that makes breach expensive
  • From common law, economic theory, and contractual conditions often found in practice, we can distill four basic objectives of contract design
  • observability
  • The disciplines of auditing and investigation roughly correspond with verification of contract performance
  • verifiability
  • The field of accounting is, roughly speaking, primarily concerned with making contracts an organization is involved in more observable
  • privity
  • This is a generalization of the common law principle of contract privity, which states that third parties, other than the designated arbitrators and intermediaries, should have no say in the enforcement of a contract
  • The field of security (especially, for smart contracts, computer and network security), roughly corresponds to the goal of privity.
  • enforceability
  • Reputation, built-in incentives, "self-enforcing" protocols, and verifiability can all play a strong part in meeting the fourth objective
  • Smart contracts often involve trusted third parties, exemplified by an intermediary, who is involved in the performance, and an arbitrator, who is invoked to resolve disputes arising out of performance (or lack thereof)
  • In smart contract design we want to get the most out of intermediaries and arbitrators, while minimizing exposure to them
  • Legal barriers are the most severe cost of doing business across many jurisdictions. Smart contracts can cut through this Gordian knot of jurisdictions
  • Where smart contracts can increase privity, they can decrease vulnerability to capricious jurisdictions
  • Secret sharing
  • The field of Electronic Data Interchange (EDI), in which elements of traditional business transactions (invoices, receipts, etc.) are exchanged electronically, sometimes including encryption and digital signature capabilities, can be viewed as a primitive forerunner to smart contracts
  • One important task of smart contracts, that has been largely overlooked by traditional EDI, is critical to "the meeting of the minds" that is at the heart of a contract: communicating the semantics of the protocols to the parties involved
  • There is ample opportunity in smart contracts for "smart fine print": actions taken by the software hidden from a party to the transaction.
  • Thus, via hidden action of the software, the customer is giving away information they might consider valuable or confidential, but the contract has been drafted, and transaction has been designed, in such a way as to hide those important parts of that transaction from the customer.
  • To properly communicate transaction semantics, we need good visual metaphors for the elements of the contract. These would hide the details of the protocol without surrendering control over the knowledge and execution of contract terms
  • Protocols based on mathematics, called cryptographic protocols, tre the basic building blocks that implement the improved tradeoffs between observability, verifiability, privity, and enforceability in smart contracts
  • secret key cryptography,
  • Public key cryptography
  • digital signatures
  • blind signature
  • Where smart contracts can increase observability or verifiability, they can decrease dependence on these obscure local legal codes and enforcement traditions
  • zero-knowledge interactive proof
  • digital mix
  • Keys are not necessarily tied to identities, and the task of doing such binding turns out to be more difficult than at first glance.
  • All public key operation are are done inside an unreadable hardware board on a machine with a very narrow serial-line connection (ie, it carries only a simple single-use protocol with well-verified security) to a dedicated firewall. Such a board is available, for example, from Kryptor, and I believe Viacrypt may also have a PGP-compatable board. This is economical for central sites, but may be less practical for normal users. Besides better security, it has the added advantage that hardware speeds up the public key computations.
  • If Mallet's capability is to physically sieze the machine, a weaker form of key protection will suffice. The trick is to hold the keys in volatile memory.
  • The data is still vulnerable to a "rubber hose attack" where the owner is coerced into revealing the hidden keys. Protection against rubber hose attacks might require some form of Shamir secret sharing which splits the keys between diverse phgsical sites.
  • How does Alice know she has Bob's key? Who, indeed, can be the parties to a smart contract? Can they be defined just by their keys? Do we need biometrics (such as autographs, typed-in passwords, retina scans, etc.)?
  • The public key cryptography software package "Pretty Good Privacy" (PGP) uses a model called "the web of trust". Alice chooses introducers whom she trusts to properly identify the map between other people and their public keys. PGP takes it from there, automatically validating any other keys that have been signed by Alice's designated introducers.
  • 1) Does the key actually belong to whom it appears to belong? In other words, has it been certified with a trusted signature?
  • 2) Does it belong to an introducers, someone you can trust to certify other keys?
  • 3) Does the key belong to someone you can trust to introduce other introducers? PGP confuses this with criterion (2). It is not clear that any single person has enough judgement to properly undertake task (3), nor has a reasonable institution been proposed that will do so. This is one of the unsolved problems in smart contracts.
  • PGP also can be given trust ratings and programmed to compute a weighted score of validity-- for example, two marginally trusted signatures might be considered as credible as one fully trusted signature
  • Notaries Public Two different acts are often called "notarization". The first is simply where one swears to the truth of some affidavit before a notary or some other officer entitled to take oaths. This does not require the notary to know who the affiant is. The second act is when someone "acknowledges" before a notary that he has executed a document as ``his own act and deed.'' This second act requires the notary to know the person making the acknowledgment.
  • "Identity" is hardly the only thing we might want map to a key. After all, physical keys we use for our house, car, etc. are not necessarily tied to our identity -- we can loan them to trusted friends and relatives, make copies of them, etc. Indeed, in cyberspace we might create "virtual personae" to reflect such multi-person relationships, or in contrast to reflect different parts of our personality that we do not want others to link. Here is a possible classification scheme for virtual personae, pedagogically presented:
  • A nym is an identifier that links only a small amount of related information about a person, usually that information deemed by the nym holder to be relevant to a particular organization or community
  • A nym may gain reputation within its community.
  • With Chaumian credentials, a nym can take advantage of the positive credentials of the holder's other nyms, as provably linked by the is-a-person credential
  • A true name is an identifier that links many different kinds of information about an person, such as a full birth name or social security number
  • As in magick, knowing a true name can confer tremendous power to one's enemies
  • A persona is any perstient pattern of behavior, along with consistently grouped information such as key(s), name(s), network address(es), writing style, and services provided
  • A reputable name is a nym or true name that has a good reputation, usually because it carries many positive credentials, has a good credit rating, or is otherwise highly regarded
  • Reputable names can be difficult to transfer between parties, because reputation assumes persistence of behavior, but such transfer can sometimes occur (for example, the sale of brand names between companies).
  • Blind signatures can be used to construct digital bearer instruments, objects identified by a unique key, and issued, cleared, and redeemed by a clearing agent.
  • The clearing agent prevents multiple clearing of particular objects, but can be prevented from linking particular objects one or both of the clearing nyms who transferred that object
  • These instruments come in an "online" variety, cleared during every transfer, and thus both verifiable and observable, and an "offline" variety, which can be transfered without being cleared, but is only verifiable when finally cleared, by revealing any the clearing nym of any intermediate holder who transfered the object multiple times (a breach of contract).
  • To implement a full transaction of payment for services, we need more than just the digital cash protocol; we need a protocol that guarantees that service will be rendered if payment is made, and vice versa
  • A credential is a claim made by one party about another. A positive credential is one the second party would prefer to reveal, such as a degree from a prestigious school, while that party would prefer not to reveal a negative credential such as a bad credit rating.
  • A Chaumian credential is a cryptographic protocol for proving one possesses claims made about onself by other nyms, without revealing linkages between those nyms. It's based around the is-a-person credential the true name credential, used to prove the linkage of otherwise unlinkable nyms, and to prevent the transfer of nyms between parties.
  • Another form of credential is bearer credential, a digital bearer instrument where the object is a credential. Here the second party in the claim refers to any bearer -- the claim is tied only to the reputable name of issuing organization, not to the nym or true name of the party holding the credential.
  • Smart Property We can extend the concept of smart contracts to property. Smart property might be created by embedding smart contracts in physical objects. These embedded protocols would automatically give control of the keys for operating the property to the party who rightfully owns that property, based on the terms of the contract. For example, a car might be rendered inoperable unless the proper challenge-response protocol is completed with its rightful owner, preventing theft. If a loan was taken out to buy that car, and the owner failed to make payments, the smart contract could automatically invoke a lien, which returns control of the car keys to the bank. This "smart lien" might be much cheaper and more effective than a repo man. Also needed is a protocol to provably remove the lien when the loan has been paid off, as well as hardship and operational exceptions. For example, it would be rude to revoke operation of the car while it's doing 75 down the freeway.
  • Smart property is software or physical devices with the desired characteristics of ownership embedded into them; for example devices that can be rendered of far less value to parties who lack possesion of a key, as demonstrated via a zero knowledge interactive proof
  • One method of implementing smart property is thru operation necessary data (OND): data necessary to the operation of smart property.
  • A smart lien is the sharing of a smart property between parties, usually two parties called the owner and the lienholder.
  • Many parties, especially new entrants, may lack this reputation capital, and will thus need to be able to share their property with the bank via secure liens
  • What about extending the concept of contract to cover agreement to a prearranged set of tort laws? These tort laws would be defined by contracts between private arbitration and enforcement agencies, while customers would have a choice of jurisdictions in this system of free-market "governments".
  • If these privately practiced law organizations (PPLs for short) bear ultimate responsibility for the criminal activities of their customers, or need to insure lack of defection or future payments on the part of customers, they may in turn ask for liens against their customers, either in with contractual terms allowing arrest of customers under certain conditions
  • Other important areas of liability include consumer liability and property damage (including pollution). There need to mechanisms so that, for example, pollution damage to others' persons or property can be assessed, and liens should exist so that the polluter can be properly charged and the victims paid. Where pollution is quantifiable, as with SO2 emissions, markets can be set up to trade emission rights. The PPLs would have liens in place to monitor their customer's emissions and assess fees where emission rights have been exceeded.
mayssamd

P2P Accounting for Planetary Survival - P2P Foundation - 0 views

wiki.p2pfoundation.net/ounting_for_Planetary_Survival

IoPA Book

shared by mayssamd on 20 Dec 22 - No Cached
  • mayssamd on 22 Dec 22
     
    Book containing relevant information relating to P2P accounting systems in additions to several case studies
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