塚谷水無子
type: MusicGroup
popularity: 5
followers: 165
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe008e2c81574f6aed5046884b8a84ada18a2523ff6388071086302ef571ff91b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954063
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954063
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/45fb08d7-778b-4422-a55d-b45fcaaf2614.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/45fb08d7-778b-4422-a55d-b45fcaaf2614.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/45fb08d7-778b-4422-a55d-b45fcaaf2614
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:49:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe008e2c81574f6aed5046884b8a84ada18a2523ff6388071086302ef571ff91b","name":"塚谷水無子","registered_at":"2026-06-16T13:56:10Z","symbol":"NIM1072990","token_address":"0xf9988c4e2dfe878b197c1298c71ddbc58b8b3a8d","type":"artist","uuid":"45fb08d7-778b-4422-a55d-b45fcaaf2614"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe008e2c81574f6aed5046884b8a84ada18a2523ff6388071086302ef571ff91b. Chain 2 (Bitcoin): anchored in block 954063 (2026-06-17T07:49:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45fb08d7-778b-4422-a55d-b45fcaaf2614.json and https://artists.proofprofile.net/proofs/artist/45fb08d7-778b-4422-a55d-b45fcaaf2614.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T07:49:29Z
  text: {"copyright_id":"0xe008e2c81574f6aed5046884b8a84ada18a2523ff6388071086302ef571ff91b","name":"塚谷水無子","registered_at":"2026-06-16T13:56:10Z","symbol":"NIM1072990","token_address":"0xf9988c4e2dfe878b197c1298c71ddbc58b8b3a8d","type":"artist","uuid":"45fb08d7-778b-4422-a55d-b45fcaaf2614"}