Doble D
type: MusicGroup
genre: hardcore
genre: hardcore punk
popularity: 3
followers: 771
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa0e603a47cadaf9a7c33960966f1d736e2a9db2685c05eb1dcf89f74c9fe0859
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/81874742-f93e-4f4f-8188-7af52df02885.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/81874742-f93e-4f4f-8188-7af52df02885.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/81874742-f93e-4f4f-8188-7af52df02885
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa0e603a47cadaf9a7c33960966f1d736e2a9db2685c05eb1dcf89f74c9fe0859","name":"Doble D","registered_at":"2026-06-17T10:45:14Z","symbol":"NIM1370971","token_address":"0xcea730a39e243dcc090eb9e6ca98dd46aca94de1","type":"artist","uuid":"81874742-f93e-4f4f-8188-7af52df02885"}
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 0xa0e603a47cadaf9a7c33960966f1d736e2a9db2685c05eb1dcf89f74c9fe0859. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/81874742-f93e-4f4f-8188-7af52df02885.json and https://artists.proofprofile.net/proofs/artist/81874742-f93e-4f4f-8188-7af52df02885.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xa0e603a47cadaf9a7c33960966f1d736e2a9db2685c05eb1dcf89f74c9fe0859","name":"Doble D","registered_at":"2026-06-17T10:45:14Z","symbol":"NIM1370971","token_address":"0xcea730a39e243dcc090eb9e6ca98dd46aca94de1","type":"artist","uuid":"81874742-f93e-4f4f-8188-7af52df02885"}
album: Bronca Latina
  type: MusicAlbum
  date published: 2008
album: Doble D
  type: MusicAlbum
  date published: 2008
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  type: MusicAlbum
  date published: 2013
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2019-10-20
album: Víctimas
  type: MusicAlbum
  date published: 2019-10-23