サラ・マッケンジー
type: MusicGroup
popularity: 12
followers: 124
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf108ce47733bf3d1795c6325927ef95ddf5cc608c2648082f1f8e58d8574fa17
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953724
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953724
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8ccc045e-ec76-4f01-bce8-40a5a2e24804.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8ccc045e-ec76-4f01-bce8-40a5a2e24804.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8ccc045e-ec76-4f01-bce8-40a5a2e24804
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T01:43:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf108ce47733bf3d1795c6325927ef95ddf5cc608c2648082f1f8e58d8574fa17","name":"サラ・マッケンジー","registered_at":"2026-06-14T19:20:15Z","symbol":"NIM0551246","token_address":"0x2c2a2a4154d13fb2eb6c24c6da0e1b9414a4515f","type":"artist","uuid":"8ccc045e-ec76-4f01-bce8-40a5a2e24804"}
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 0xf108ce47733bf3d1795c6325927ef95ddf5cc608c2648082f1f8e58d8574fa17. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ccc045e-ec76-4f01-bce8-40a5a2e24804.json and https://artists.proofprofile.net/proofs/artist/8ccc045e-ec76-4f01-bce8-40a5a2e24804.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T01:43:13Z
  text: {"copyright_id":"0xf108ce47733bf3d1795c6325927ef95ddf5cc608c2648082f1f8e58d8574fa17","name":"サラ・マッケンジー","registered_at":"2026-06-14T19:20:15Z","symbol":"NIM0551246","token_address":"0x2c2a2a4154d13fb2eb6c24c6da0e1b9414a4515f","type":"artist","uuid":"8ccc045e-ec76-4f01-bce8-40a5a2e24804"}
album: シークレッツ・オブ・マイ・ハート
  type: MusicAlbum
  date published: 2019-06-05