Open-Transactions
- Open-Transactions is an easy-to-use, financial crypto, digital cash and transactionlibrary.
- Open-Transactions includes a client API, a working server, a GUI test wallet (in Java) and a command-line wallet utility.
- Open-Transactions features: a large variety of financial instruments, markets, basket currencies, unforgeable account balances, digital cash, destruction of account history, Ricardian contracts, Smart Contracts (scriptable clauses), and more.
- Open-Transactions allows users to issue and manipulate digital assets.
- Any issuer can sign and distribute new currency contracts in order to create new digital asset types.
- Users may create many pseudonyms (public keys), each of which may own asset accounts of various types, on OT servers.
- Users can operate “cash-only” (without accounts) for maximum anonymity, usingunlinkable digital cash.
- Users can transfer digital assets securely and provably, with receipts signed by all parties.
- Even an OT server cannot change balances, or forge transactions–since it cannot forge your signature on your receipt.
- Open-Transactions supports a range of financial instruments such as account transfer, cheques and vouchers (aka “cashier’s cheques” or “banker’s cheques”), in addition to cash.
- These instruments are all analogous to the same financial instruments that we all use at normal banks today. Everyone already has an intuitive understanding of these financial instruments, because we use them regularly in our normal daily lives.
- Open-Transactions also implements higher-level, contract-based transactionssuch as payment plans and markets with trades.
- The markets on Open-Transactions support market orders, limit orders, fill-or-kill orders, day orders, stop orders, and stop limits, just like trading on a real market.
- Basket currencies are also supported, as well as payment plans (recurring payments.)
- Smart contracts: Multi-party agreements with scriptable clauses… including hooks, callbacks, internal state, etc.
- Client-side scripting: !/usr/bin/env ot The entire (mostly) high and low level OT API is available within your scripts.
- All of this is accomplished in such a way that all parties are able to prove, at all times, which transactions have cleared and which instruments are authorized,without having to store their entire transaction history, but instead by merely keeping the last signed receipt.
- Without the special mechanism that makes this possible, all parties would otherwise be forced to store all receipts forever.
- Nyms and Asset Types have consistent IDs across all OT servers, since the ID is formed by hashing the relevant contract or public key.
- Installation
- Using the command-line tool
- Using the API
- Using the server
- otapiJ (with test GUI in Java)
OTHER LINKS
- A consumer mobile phone app that enables everyone, including the world’s 2.5 billion “unbanked”, to buy and sell and participate in the world economy—no bank account required.
- A turnkey enterprise platform that enables anyone, anywhere to set up a business from scratch, complete with legal entity, payment system, and website, within minutes and at negligible cost—no merchant account required.

Open supply Server based mostly management systems became a standard selection for organizations over the stand alone desktop databases.
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