Última Semilla
type: MusicGroup
popularity: 2
followers: 96
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x52e2b3f528bc80d2c36f2fcedb7ec15fe43380c766d6725fb6b14af59699526b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1290faaa-cef8-4e72-a3e5-d0d799eaf76d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1290faaa-cef8-4e72-a3e5-d0d799eaf76d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1290faaa-cef8-4e72-a3e5-d0d799eaf76d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x52e2b3f528bc80d2c36f2fcedb7ec15fe43380c766d6725fb6b14af59699526b","name":"Última Semilla","registered_at":"2026-06-15T20:14:53Z","symbol":"NIM0819664","token_address":"0xe4def9b4968b825e161ddbed68e198ff1f79ea51","type":"artist","uuid":"1290faaa-cef8-4e72-a3e5-d0d799eaf76d"}
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 0x52e2b3f528bc80d2c36f2fcedb7ec15fe43380c766d6725fb6b14af59699526b. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1290faaa-cef8-4e72-a3e5-d0d799eaf76d.json and https://artists.proofprofile.net/proofs/artist/1290faaa-cef8-4e72-a3e5-d0d799eaf76d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T06:37:25Z
  text: {"copyright_id":"0x52e2b3f528bc80d2c36f2fcedb7ec15fe43380c766d6725fb6b14af59699526b","name":"Última Semilla","registered_at":"2026-06-15T20:14:53Z","symbol":"NIM0819664","token_address":"0xe4def9b4968b825e161ddbed68e198ff1f79ea51","type":"artist","uuid":"1290faaa-cef8-4e72-a3e5-d0d799eaf76d"}
album: Vivo En Zadar
  type: MusicAlbum
  date published: 2024-04-02
album: Ser Tiempo
  type: MusicAlbum
  date published: 2024-04-13
album: Cenizas de un Volcán
  type: MusicAlbum
  date published: 2025-03-29
album: Vuelvo a Ser
  type: MusicAlbum
  date published: 2025-09-25
album: Florecer
  type: MusicAlbum
  date published: 2025-10-24