Ann B. Mateo
type: MusicGroup
popularity: 20
followers: 125
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef4abd9c7dcb5fdae35dddc92794f6af5674ebbc59216cb273e6c886f64b5e31
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953770
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953770
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c4a59fc7-fdd9-4165-bb62-95b6e35132f4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c4a59fc7-fdd9-4165-bb62-95b6e35132f4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c4a59fc7-fdd9-4165-bb62-95b6e35132f4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T09:50:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xef4abd9c7dcb5fdae35dddc92794f6af5674ebbc59216cb273e6c886f64b5e31","name":"Ann B. Mateo","registered_at":"2026-06-15T01:07:27Z","symbol":"NIM0634103","token_address":"0xda2b95b22f69808731bfee67802b0d18b317ff17","type":"artist","uuid":"c4a59fc7-fdd9-4165-bb62-95b6e35132f4"}
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 0xef4abd9c7dcb5fdae35dddc92794f6af5674ebbc59216cb273e6c886f64b5e31. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4a59fc7-fdd9-4165-bb62-95b6e35132f4.json and https://artists.proofprofile.net/proofs/artist/c4a59fc7-fdd9-4165-bb62-95b6e35132f4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T10:40:45Z
  text: {"copyright_id":"0xef4abd9c7dcb5fdae35dddc92794f6af5674ebbc59216cb273e6c886f64b5e31","name":"Ann B. Mateo","registered_at":"2026-06-15T01:07:27Z","symbol":"NIM0634103","token_address":"0xda2b95b22f69808731bfee67802b0d18b317ff17","type":"artist","uuid":"c4a59fc7-fdd9-4165-bb62-95b6e35132f4"}