水沢依緒
type: MusicGroup
popularity: 6
followers: 84
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x37f7b8539f889984ea12869a8f933d071b20a2a06ca0203511258629438affec
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d1df6b00-6cc9-4d35-b115-84893625eec7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d1df6b00-6cc9-4d35-b115-84893625eec7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d1df6b00-6cc9-4d35-b115-84893625eec7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x37f7b8539f889984ea12869a8f933d071b20a2a06ca0203511258629438affec","name":"水沢依緒","registered_at":"2026-06-21T01:23:22Z","symbol":"NIM1776536","token_address":"0xb92be5f238182f38839a3a86a57f8da81c39cbbb","type":"artist","uuid":"d1df6b00-6cc9-4d35-b115-84893625eec7"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f7b8539f889984ea12869a8f933d071b20a2a06ca0203511258629438affec. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1df6b00-6cc9-4d35-b115-84893625eec7.json and https://artists.proofprofile.net/proofs/artist/d1df6b00-6cc9-4d35-b115-84893625eec7.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x37f7b8539f889984ea12869a8f933d071b20a2a06ca0203511258629438affec","name":"水沢依緒","registered_at":"2026-06-21T01:23:22Z","symbol":"NIM1776536","token_address":"0xb92be5f238182f38839a3a86a57f8da81c39cbbb","type":"artist","uuid":"d1df6b00-6cc9-4d35-b115-84893625eec7"}