Laura Sewell
type: MusicGroup
genre: chamber music
popularity: 2
followers: 81
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2f77da6724a3b5fd670cc64128a9eb4a9f457e9e71d7146a0f63f15bdf4ce648
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954055
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954055
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/443fc342-7fc1-44ab-a17e-78db5a753b6b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/443fc342-7fc1-44ab-a17e-78db5a753b6b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/443fc342-7fc1-44ab-a17e-78db5a753b6b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T05:51:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2f77da6724a3b5fd670cc64128a9eb4a9f457e9e71d7146a0f63f15bdf4ce648","name":"Laura Sewell","registered_at":"2026-06-16T13:20:52Z","symbol":"NIM1064567","token_address":"0x2769fbae7a0c1c24794a7bf30aa1a42f1b8df85e","type":"artist","uuid":"443fc342-7fc1-44ab-a17e-78db5a753b6b"}
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 0x2f77da6724a3b5fd670cc64128a9eb4a9f457e9e71d7146a0f63f15bdf4ce648. Chain 2 (Bitcoin): anchored in block 954055 (2026-06-17T05:51:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/443fc342-7fc1-44ab-a17e-78db5a753b6b.json and https://artists.proofprofile.net/proofs/artist/443fc342-7fc1-44ab-a17e-78db5a753b6b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T05:51:24Z
  text: {"copyright_id":"0x2f77da6724a3b5fd670cc64128a9eb4a9f457e9e71d7146a0f63f15bdf4ce648","name":"Laura Sewell","registered_at":"2026-06-16T13:20:52Z","symbol":"NIM1064567","token_address":"0x2769fbae7a0c1c24794a7bf30aa1a42f1b8df85e","type":"artist","uuid":"443fc342-7fc1-44ab-a17e-78db5a753b6b"}
album: Threescore
  type: MusicAlbum
  date published: 2022-03-25
album: Threescore
  type: MusicAlbum
  date published: 2022-03-25