Hannah Grey
type: MusicGroup
popularity: 21
followers: 315
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4b5c62d63e14df7a07a32da4da5c1a0983f05d3628da5be9ea25061eb36395aa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c957a5b1-76b7-42e7-8984-f8a22c98ec4b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c957a5b1-76b7-42e7-8984-f8a22c98ec4b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c957a5b1-76b7-42e7-8984-f8a22c98ec4b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4b5c62d63e14df7a07a32da4da5c1a0983f05d3628da5be9ea25061eb36395aa","name":"Hannah Grey","registered_at":"2026-06-12T09:43:41Z","symbol":"NIM0259725","token_address":"0x8d14a692b68209971d575a9b252094c1ff8d2a6b","type":"artist","uuid":"c957a5b1-76b7-42e7-8984-f8a22c98ec4b"}
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 0x4b5c62d63e14df7a07a32da4da5c1a0983f05d3628da5be9ea25061eb36395aa. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c957a5b1-76b7-42e7-8984-f8a22c98ec4b.json and https://artists.proofprofile.net/proofs/artist/c957a5b1-76b7-42e7-8984-f8a22c98ec4b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x4b5c62d63e14df7a07a32da4da5c1a0983f05d3628da5be9ea25061eb36395aa","name":"Hannah Grey","registered_at":"2026-06-12T09:43:41Z","symbol":"NIM0259725","token_address":"0x8d14a692b68209971d575a9b252094c1ff8d2a6b","type":"artist","uuid":"c957a5b1-76b7-42e7-8984-f8a22c98ec4b"}
album: Still Waters
  type: MusicAlbum
  date published: 2021-01-15