Los Ferrer
type: MusicGroup
popularity: 3
followers: 206
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xec1da65d07f2d1680a5ed2d47c1c06dc16da81ff332d17bd4afed43405dcb587
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4db060d8-6393-4a04-8916-d7e8cd01dfab.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4db060d8-6393-4a04-8916-d7e8cd01dfab.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4db060d8-6393-4a04-8916-d7e8cd01dfab
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xec1da65d07f2d1680a5ed2d47c1c06dc16da81ff332d17bd4afed43405dcb587","name":"Los Ferrer","registered_at":"2026-06-16T16:44:48Z","symbol":"NIM1113223","token_address":"0x1dd75cdd6e8ba3cf003712631da53e945f9b728c","type":"artist","uuid":"4db060d8-6393-4a04-8916-d7e8cd01dfab"}
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 0xec1da65d07f2d1680a5ed2d47c1c06dc16da81ff332d17bd4afed43405dcb587. 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/4db060d8-6393-4a04-8916-d7e8cd01dfab.json and https://artists.proofprofile.net/proofs/artist/4db060d8-6393-4a04-8916-d7e8cd01dfab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xec1da65d07f2d1680a5ed2d47c1c06dc16da81ff332d17bd4afed43405dcb587","name":"Los Ferrer","registered_at":"2026-06-16T16:44:48Z","symbol":"NIM1113223","token_address":"0x1dd75cdd6e8ba3cf003712631da53e945f9b728c","type":"artist","uuid":"4db060d8-6393-4a04-8916-d7e8cd01dfab"}
album: Azul y Oro
  type: MusicAlbum
  date published: 2020-11-17
album: El Ciclo
  type: MusicAlbum
  date published: 2021-12-24
album: Una Bamba Para Mis Pumas
  type: MusicAlbum
  date published: 2024-04-19
album: Una Bamba Para Mis Pumas
  type: MusicAlbum
  date published: 2024-04-19