Zeca Preto
type: MusicGroup
popularity: 6
followers: 289
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa30e937518ea847719662a52124e03e66cf173dbec27f244df418c86cddefdc0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ab5f893b-a3f8-4fef-9990-8893dbe0a3e9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ab5f893b-a3f8-4fef-9990-8893dbe0a3e9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ab5f893b-a3f8-4fef-9990-8893dbe0a3e9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa30e937518ea847719662a52124e03e66cf173dbec27f244df418c86cddefdc0","name":"Zeca Preto","registered_at":"2026-06-20T09:41:24Z","symbol":"NIM1582877","token_address":"0x645010bac1674d4f4019df15967b114f70961b82","type":"artist","uuid":"ab5f893b-a3f8-4fef-9990-8893dbe0a3e9"}
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 0xa30e937518ea847719662a52124e03e66cf173dbec27f244df418c86cddefdc0. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab5f893b-a3f8-4fef-9990-8893dbe0a3e9.json and https://artists.proofprofile.net/proofs/artist/ab5f893b-a3f8-4fef-9990-8893dbe0a3e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0xa30e937518ea847719662a52124e03e66cf173dbec27f244df418c86cddefdc0","name":"Zeca Preto","registered_at":"2026-06-20T09:41:24Z","symbol":"NIM1582877","token_address":"0x645010bac1674d4f4019df15967b114f70961b82","type":"artist","uuid":"ab5f893b-a3f8-4fef-9990-8893dbe0a3e9"}
album: Roraimeira
  type: MusicAlbum
  date published: 1985
album: Na Ponta do Norte
  type: MusicAlbum
  date published: 2001-03-01
album: Nas Esquinas da Amazônia
  type: MusicAlbum
  date published: 2016-06-23
album: Loucura Especial
  type: MusicAlbum
  date published: 2024-05-07