Abstract: A node in a blockchain network may agree, on an authority accept a compliance module from the authority, accept the compliance module. The node may also receive an operation, verify a compliance of the operation based on the compliance module, add the verified operation to a ledger on the blockchain network.

Abstract: Disclosed are a computer-hosted database system providing cryptographic verifiability and comprising an immutable key-value data store and cryptographic proof data (which may be stored in a Merkle Hash Tree). The logical structure of a data record is defined by a rich data model and comprises a first field and a second field. Disclosed is a method that comprises receiving an instruction requesting retrieval of first field data and returning the data stored in the first field and cryptographic proof data sufficient to prove data originality of the first field data without knowledge of the data in the second field. The rich data model may be a relational data model or a document data model.

Abstract: An example operation may include one or more of computing historical patterns related to fraudulent attempts from a transaction log, predicting future fraud attempts from public data, correlating the historical patterns and the predicted future fraud attempts, modifying one or more first endorsement policies based on the correlations, preventing modifying one or more second endorsement policies, the one or more second endorsement policies providing read-only access, and adding the modified one or more first endorsement policies to a smart contract.

Abstract: A method, system and apparatus of for validating uniqueness of a non-disclosed element of data, including in response to receiving a plurality of elements, generating an index of the plurality of elements of data received from a data store to create uniquely indexed data, generating filters from the index, generating a hash tree for the uniquely indexed data using the index, and validating a unique element of data from the hash tree and filters.

Abstract: A node in a blockchain network may receive an endorsed operation for a blockchain network, apply the operation; include a list comprising the operation in a subsequent block, and commit the subsequent block to a ledger of the blockchain network.

Abstract: A plurality of ledger nodes within a blockchain infrastructure is continuously updated via a set of conduit nodes. The set of conduit nodes share a secure provision ledger. The secure provision ledger includes a set of updates for the blockchain infrastructure. Each conduit node within the set propagates the set of updates to a subset of the plurality of ledger nodes.

Abstract: Cryptographically-verifiable immutable database systems and methods for permanently deleting transaction value data from the immutable database system, preserving transaction verification data. Database schema data may be preserved when transaction value data is deleted.

Abstract: Disclosed herein are computer-implemented methods of, and computer systems for, constructing dual cryptographic proofs for transactions where transaction data is stored in a cryptographically-linked data file and in an incremental hash tree, where a dual cryptographic proof includes linear cryptographic proof data from the cryptographically-linked transaction file and binary cryptographic proof data from the incremental hash tree. The transaction may include one or more key-value pairs.

Abstract: A computer-implemented method for configuring a blockchain network, a computer program product for integrating device identity into a permissioning framework of a blockchain network, and a blockchain network. One embodiment may comprise registering a device at a delineate node of a blockchain network, creating, by a processor of the delineate node based on the registering, a profile for the device; an performing, by the processor of the delineate node, a pass-through service for the device. The registering may include receiving, by a network interface, an immutable device identity from the device.

Abstract: The processor may collect, from a first peer, a first data set associated with a channel. The channel may include one or more assets associated with a first peer. The channel may link the first peer to a second peer. The processor may analyze the first data set to determine a first status for the one or more assets. The processor may provide the first status of the one or more assets in a viewable channel to the blockchain network.

Abstract: An example operation may include one or more of computing historical patterns related to fraudulent attempts from a transaction log, predicting future fraud attempts from public data, correlating the historical patterns and the predicted future fraud attempts, modifying one or more endorsement policies based on the correlations, and adding the modified one or more endorsement policies to a smart contract.

Abstract: A node in a blockchain network may agree, on an authority accept a compliance module from the authority, accept the compliance module. The node may also receive an operation, verify a compliance of the operation based on the compliance module, add the verified operation to a ledger on the blockchain network.

Abstract: An example operation may include one or more of executing, by an endorser node, a smart contract to generate a blockchain transaction data, generating, by the endorser node, metadata specific to the endorser node, concatenating, by the endorser node, the metadata with the blockchain transaction data, signing, by the endorser node, a concatenation result data with a key of the endorser node, and providing, by the endorser node, the signed concatenation result data to a committer node for verification.

Abstract: An example operation may include one or more of: receive a first set of annotation information, determine a first approval decision for the first set of annotation information, record the first approval decision in a blockchain, retrieve a first set of approval decisions from the blockchain, generate a consensus based on the first set of approval decisions, and record the consensus in the blockchain.

Abstract: An example operation may include one or more of storing chaincode that comprises a plurality of statements to be executed, receiving a message to endorse a blockchain storage request, delaying execution of one or more statements within the chaincode based on content included within the chaincode, endorsing the blockchain storage request via execution of remaining statements included in the chaincode which are not delayed to generate an endorsement result, and transmitting the endorsement result to a node.

Abstract: A node in a blockchain network may agree, on an authority accept a compliance module from the authority, accept the compliance module. The node may also receive an operation, verify a compliance of the operation based on the compliance module, add the verified operation to a ledger on the blockchain network.

Abstract: The processor may collect, from a first peer, a first data set associated with a channel. The channel may include one or more assets associated with a first peer. The channel may link the first peer to a second peer. The processor may analyze the first data set to determine a first status for the one or more assets. The processor may provide the first status of the one or more assets in a viewable channel to the blockchain network.

Abstract: A computer-implemented system and related method process a smart contract. The method uses a processor for processing a smart contract that receives a transaction proposal (TP) from a blockchain client. The processor determines a pre-endorsement result (PER) that is associated with the TP, analyzes, according to a pre-endorsement agreement logic, the PER to produce an agreed result, and endorses the agreed result. The processor sends, to the blockchain client, the endorsed agreed result.

Abstract: A member of a group in a blockchain network may generate a public key and a private key, request a blockchain network group certificate, associated with the private key, from a blockchain network certificate authority, and distribute a private key to members of the group.

Abstract: The processor may collect, from a first peer, a first data set associated with a channel. The channel may include one or more assets associated with a first peer. The channel may link the first peer to a second peer. The processor may analyze the first data set to determine a first status for the one or more assets. The processor may provide the first status of the one or more assets in a viewable channel to the blockchain network.