Ann Masina
type: MusicGroup
genre: afropop
genre: afro soul
popularity: 9
followers: 230
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe95b4e169503a5f0179148ea50ed8b634a83aaeb1ebe6693262bc990a4846679
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9b1f483e-a377-4da9-ac1e-d8851faefa0d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9b1f483e-a377-4da9-ac1e-d8851faefa0d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9b1f483e-a377-4da9-ac1e-d8851faefa0d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe95b4e169503a5f0179148ea50ed8b634a83aaeb1ebe6693262bc990a4846679","name":"Ann Masina","registered_at":"2026-06-17T20:01:22Z","symbol":"NIM1499480","token_address":"0x8caacd70a2bab3db3f26a1312c2d5ac5cbc88c03","type":"artist","uuid":"9b1f483e-a377-4da9-ac1e-d8851faefa0d"}
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 0xe95b4e169503a5f0179148ea50ed8b634a83aaeb1ebe6693262bc990a4846679. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b1f483e-a377-4da9-ac1e-d8851faefa0d.json and https://artists.proofprofile.net/proofs/artist/9b1f483e-a377-4da9-ac1e-d8851faefa0d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xe95b4e169503a5f0179148ea50ed8b634a83aaeb1ebe6693262bc990a4846679","name":"Ann Masina","registered_at":"2026-06-17T20:01:22Z","symbol":"NIM1499480","token_address":"0x8caacd70a2bab3db3f26a1312c2d5ac5cbc88c03","type":"artist","uuid":"9b1f483e-a377-4da9-ac1e-d8851faefa0d"}