Sophia Mackay
type: MusicGroup
popularity: 5
followers: 36
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x97628dc14e97a73e097f6c596df3a45bff306f81f8307e32d2c487176890bd45
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c211775a-c2f5-4a00-aac1-6b021f839d8a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c211775a-c2f5-4a00-aac1-6b021f839d8a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c211775a-c2f5-4a00-aac1-6b021f839d8a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x97628dc14e97a73e097f6c596df3a45bff306f81f8307e32d2c487176890bd45","name":"Sophia Mackay","registered_at":"2026-06-20T19:42:52Z","symbol":"NIM1694134","token_address":"0x3d7de6ede5719dca19397eab0d69b6fc99cf5ae7","type":"artist","uuid":"c211775a-c2f5-4a00-aac1-6b021f839d8a"}
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 0x97628dc14e97a73e097f6c596df3a45bff306f81f8307e32d2c487176890bd45. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c211775a-c2f5-4a00-aac1-6b021f839d8a.json and https://artists.proofprofile.net/proofs/artist/c211775a-c2f5-4a00-aac1-6b021f839d8a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x97628dc14e97a73e097f6c596df3a45bff306f81f8307e32d2c487176890bd45","name":"Sophia Mackay","registered_at":"2026-06-20T19:42:52Z","symbol":"NIM1694134","token_address":"0x3d7de6ede5719dca19397eab0d69b6fc99cf5ae7","type":"artist","uuid":"c211775a-c2f5-4a00-aac1-6b021f839d8a"}