El Capitán Sergio Marcos
type: MusicGroup
genre: argentine rock
genre: mexican rock
genre: rock urbano
popularity: 26
followers: 340
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1393aad5abddc2094bacb088cc18345c1c4945c6862e2f2d399fa57f1d111501
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8ac7403a-1e5f-490c-a236-b505af2f6fb0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8ac7403a-1e5f-490c-a236-b505af2f6fb0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8ac7403a-1e5f-490c-a236-b505af2f6fb0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1393aad5abddc2094bacb088cc18345c1c4945c6862e2f2d399fa57f1d111501","name":"El Capitán Sergio Marcos","registered_at":"2026-06-12T03:59:22Z","symbol":"NIM0180212","token_address":"0xe038ece25207f21916ae02f766ecfd8081b53e3d","type":"artist","uuid":"8ac7403a-1e5f-490c-a236-b505af2f6fb0"}
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 0x1393aad5abddc2094bacb088cc18345c1c4945c6862e2f2d399fa57f1d111501. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ac7403a-1e5f-490c-a236-b505af2f6fb0.json and https://artists.proofprofile.net/proofs/artist/8ac7403a-1e5f-490c-a236-b505af2f6fb0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x1393aad5abddc2094bacb088cc18345c1c4945c6862e2f2d399fa57f1d111501","name":"El Capitán Sergio Marcos","registered_at":"2026-06-12T03:59:22Z","symbol":"NIM0180212","token_address":"0xe038ece25207f21916ae02f766ecfd8081b53e3d","type":"artist","uuid":"8ac7403a-1e5f-490c-a236-b505af2f6fb0"}
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  type: MusicAlbum
  date published: 2022-12-10
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