Sergio Requena
type: MusicGroup
popularity: 12
followers: 359
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9e65db40e242616561cd3b740da96c02474782170a2a34781e43920468cf4c8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953674
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953674
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5b6677a1-9164-48f9-921b-50e89c063353.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5b6677a1-9164-48f9-921b-50e89c063353.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5b6677a1-9164-48f9-921b-50e89c063353
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:07:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc9e65db40e242616561cd3b740da96c02474782170a2a34781e43920468cf4c8","name":"Sergio Requena","registered_at":"2026-06-14T14:01:04Z","symbol":"NIM0475119","token_address":"0xebadca1cfe7fb92c225f340cc019c322e9d3b078","type":"artist","uuid":"5b6677a1-9164-48f9-921b-50e89c063353"}
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 0xc9e65db40e242616561cd3b740da96c02474782170a2a34781e43920468cf4c8. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b6677a1-9164-48f9-921b-50e89c063353.json and https://artists.proofprofile.net/proofs/artist/5b6677a1-9164-48f9-921b-50e89c063353.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:49:28Z
  text: {"copyright_id":"0xc9e65db40e242616561cd3b740da96c02474782170a2a34781e43920468cf4c8","name":"Sergio Requena","registered_at":"2026-06-14T14:01:04Z","symbol":"NIM0475119","token_address":"0xebadca1cfe7fb92c225f340cc019c322e9d3b078","type":"artist","uuid":"5b6677a1-9164-48f9-921b-50e89c063353"}
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  type: MusicAlbum
  date published: 2013-12-05
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  type: MusicAlbum
  date published: 2015-04-09
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  type: MusicAlbum
  date published: 2015-07-17
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  type: MusicAlbum
  date published: 2016-01-20
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  type: MusicAlbum
  date published: 2018-03-01
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  type: MusicAlbum
  date published: 2019-01-18
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  type: MusicAlbum
  date published: 2019-03-22