Hermano Zeferino
type: MusicGroup
genre: lullaby
popularity: 2
followers: 120
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x717c7c6b302b9fde150d54597e989c613b0dfd8d332dc77bc72ddc9808428f44
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953907
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953907
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15f32fe4-fac6-4767-8c4f-6cbf7c682552.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15f32fe4-fac6-4767-8c4f-6cbf7c682552.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/15f32fe4-fac6-4767-8c4f-6cbf7c682552
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:39:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x717c7c6b302b9fde150d54597e989c613b0dfd8d332dc77bc72ddc9808428f44","name":"Hermano Zeferino","registered_at":"2026-06-15T21:15:21Z","symbol":"NIM0834078","token_address":"0x8d9305b0e7aab37867d15dd13d49d1a45a89087e","type":"artist","uuid":"15f32fe4-fac6-4767-8c4f-6cbf7c682552"}
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 0x717c7c6b302b9fde150d54597e989c613b0dfd8d332dc77bc72ddc9808428f44. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15f32fe4-fac6-4767-8c4f-6cbf7c682552.json and https://artists.proofprofile.net/proofs/artist/15f32fe4-fac6-4767-8c4f-6cbf7c682552.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x717c7c6b302b9fde150d54597e989c613b0dfd8d332dc77bc72ddc9808428f44","name":"Hermano Zeferino","registered_at":"2026-06-15T21:15:21Z","symbol":"NIM0834078","token_address":"0x8d9305b0e7aab37867d15dd13d49d1a45a89087e","type":"artist","uuid":"15f32fe4-fac6-4767-8c4f-6cbf7c682552"}
album: ¡A cantar!
  type: MusicAlbum
  date published: 2013-03-15