七海やちよ(CV:雨宮天)
type: MusicGroup
popularity: 7
followers: 50
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbf38eba48a5c61b20b4bdf27e995f1ebf72dd3033504ccc2c4f5868bde6a03a6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954017
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954017
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37667690-d940-43f6-874a-acaad1b363d6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37667690-d940-43f6-874a-acaad1b363d6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/37667690-d940-43f6-874a-acaad1b363d6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:38:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbf38eba48a5c61b20b4bdf27e995f1ebf72dd3033504ccc2c4f5868bde6a03a6","name":"七海やちよ(CV:雨宮天)","registered_at":"2026-06-16T08:49:28Z","symbol":"NIM0999822","token_address":"0xee4c7b8f223b1a3913ecbf22fbbc72dd22569a14","type":"artist","uuid":"37667690-d940-43f6-874a-acaad1b363d6"}
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 0xbf38eba48a5c61b20b4bdf27e995f1ebf72dd3033504ccc2c4f5868bde6a03a6. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37667690-d940-43f6-874a-acaad1b363d6.json and https://artists.proofprofile.net/proofs/artist/37667690-d940-43f6-874a-acaad1b363d6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T23:38:33Z
  text: {"copyright_id":"0xbf38eba48a5c61b20b4bdf27e995f1ebf72dd3033504ccc2c4f5868bde6a03a6","name":"七海やちよ(CV:雨宮天)","registered_at":"2026-06-16T08:49:28Z","symbol":"NIM0999822","token_address":"0xee4c7b8f223b1a3913ecbf22fbbc72dd22569a14","type":"artist","uuid":"37667690-d940-43f6-874a-acaad1b363d6"}