Negramenta
type: MusicGroup
genre: salsa
genre: timba
popularity: 3
followers: 126
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x57c3d4bbdaf0db5f79fa76c6b57a12fe63a86eec7aa347ee05a331ae8fc57c41
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954025
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954025
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39102232-47ab-4d6d-91a9-2736fd2cab00.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39102232-47ab-4d6d-91a9-2736fd2cab00.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/39102232-47ab-4d6d-91a9-2736fd2cab00
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T00:32:47Z
additional property: OTSCanonicalRecord
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 0x57c3d4bbdaf0db5f79fa76c6b57a12fe63a86eec7aa347ee05a331ae8fc57c41. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39102232-47ab-4d6d-91a9-2736fd2cab00.json and https://artists.proofprofile.net/proofs/artist/39102232-47ab-4d6d-91a9-2736fd2cab00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: En pedacitos
  type: MusicAlbum
  date published: 2023-12-17
album: Los Buenos
  type: MusicAlbum
  date published: 2024-03-15
album: Otra cosa!
  type: MusicAlbum
  date published: 2024-03-15
album: LIBRE
  type: MusicAlbum
  date published: 2024-03-15
album: Cosas de Negros, Vol. 2
  type: MusicAlbum
  date published: 2024-03-15
album: Pa los cuatro vientos
  type: MusicAlbum
  date published: 2024-03-15
album: 10th Aniversario
  type: MusicAlbum
  date published: 2025-02-15
album: Poema #7
  type: MusicAlbum
  date published: 2025-05-27