Kerwin Marquez
type: MusicGroup
popularity: 3
followers: 383
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3165c344ac8f9cfca039ef94c1fc7370c7cbea31f74db7cc69d91bde15edc65d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953928
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953928
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d64958f-5744-411b-8d1f-8c5a33c71d4f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d64958f-5744-411b-8d1f-8c5a33c71d4f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1d64958f-5744-411b-8d1f-8c5a33c71d4f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T10:21:55Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3165c344ac8f9cfca039ef94c1fc7370c7cbea31f74db7cc69d91bde15edc65d","name":"Kerwin Marquez","registered_at":"2026-06-15T23:47:51Z","symbol":"NIM0870467","token_address":"0xb272e05510159269962530b1fbc4194839c84080","type":"artist","uuid":"1d64958f-5744-411b-8d1f-8c5a33c71d4f"}
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 0x3165c344ac8f9cfca039ef94c1fc7370c7cbea31f74db7cc69d91bde15edc65d. Chain 2 (Bitcoin): anchored in block 953928 (2026-06-16T10:21:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d64958f-5744-411b-8d1f-8c5a33c71d4f.json and https://artists.proofprofile.net/proofs/artist/1d64958f-5744-411b-8d1f-8c5a33c71d4f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T10:21:55Z
  text: {"copyright_id":"0x3165c344ac8f9cfca039ef94c1fc7370c7cbea31f74db7cc69d91bde15edc65d","name":"Kerwin Marquez","registered_at":"2026-06-15T23:47:51Z","symbol":"NIM0870467","token_address":"0xb272e05510159269962530b1fbc4194839c84080","type":"artist","uuid":"1d64958f-5744-411b-8d1f-8c5a33c71d4f"}
album: Corrientes de Aguas
  type: MusicAlbum
  date published: 2019-02-20
album: Cambiando al Mundo
  type: MusicAlbum
  date published: 2021-08-20
album: Sonrie
  type: MusicAlbum
  date published: 2021-08-20
album: Jesus Es la Estrella
  type: MusicAlbum
  date published: 2021-11-01
album: Mueve Las Aguas
  type: MusicAlbum
  date published: 2023-12-16