Return the latest committed block of the live NOVAI chain: its height, block hash, round, transaction count, state root, and parent hash. Use this to verify the chain is live and advancing, and to learn the current tip height before requesting a specific block. Takes no parameters.

Fetch a single committed block by height or by hash. Provide exactly one of height or hash. Returns the block height, block hash, parent hash, round, state root, and transaction count, or null if no such block is known. Note: the endpoint retains a bounded recent window of blocks by height, so very old heights can return null even though they were valid blocks. Lookups by hash work for any block the node still indexes.

Fetch a confirmed transaction by its transaction id. Returns the block height, transaction index, sender address, nonce, fee, and payload length, or null if the transaction is not found.

Fetch an on-chain AI entity (agent) by its entity id. Returns the entity record including code hash, creator, autonomy mode, capability bits, economic and stake balances, reputation score, transaction count, and activity timestamps, or null if no entity exists for that id.

Fetch the balance and nonce for an account or entity address. The balance is returned as a decimal string to preserve full precision.

List the signal commitments recorded at a specific block height. Each entry has a commitment hash, a numeric signal type, the height, and the issuer. Use this to see which signals were committed in a given block.

List the signal commitments issued by a given entity within a block height range. Returns commitment hash, signal type, height, and issuer for each.

List the signal commitments of a given type within a block height range. The endpoint currently accepts these signal type codes: 0 Anomaly, 1 Optimization, 2 Prediction, 3 RiskScore, 4 AuditReport, 5 SpamRisk, 6 CongestionForecast. Returns commitment hash, signal type, height, and issuer for each.

Fetch a single oracle anchor by its signal hash. Returns the issuer entity, data hash, external timestamp, source hash, expiry and anchor heights, and data tag, or null if no anchor exists for that hash.

List oracle anchors issued by a given entity within a block height range, optionally filtered by an external timestamp range. Returns issuer entity, data hash, external timestamp, source hash, expiry and anchor heights, and data tag for each.

List oracle anchors carrying a given data tag within a block height range, optionally filtered by an external timestamp range. Returns issuer entity, data hash, external timestamp, source hash, expiry and anchor heights, and data tag for each.

List the on-chain memory objects owned by an entity. Each object has an object id, a numeric object type, owner, creation and update heights, and hex encoded data. Object type codes: 0 ChainSummary, 1 LabelIndex, 2 EmbeddingCommitment, 3 AnomalyLog, 4 StatisticsSnapshot, 5 ReputationEvent, 6 Rating, 7 SignalCatalog, 8 CompositionGraph, 9 VerificationRecord, 10 DelegationGrant, 11 Subscription, 12 ServiceDescriptor, 13 VkRegistration, 14 SlaAgreement, 15 PaymentChannel.