La Melincué Tango Dúo
type: MusicGroup
genre: tango
popularity: 5
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xafcfbd173fac1f1a4f796bd1cdc5e9f11efbbe0fed15f7a5fdd83f0cab8a6fed
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954659
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954659
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dd849ce2-512a-4108-badf-c54d93461153.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dd849ce2-512a-4108-badf-c54d93461153.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dd849ce2-512a-4108-badf-c54d93461153
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T06:14:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xafcfbd173fac1f1a4f796bd1cdc5e9f11efbbe0fed15f7a5fdd83f0cab8a6fed","name":"La Melincué Tango Dúo","registered_at":"2026-06-21T05:23:34Z","symbol":"NIM1832773","token_address":"0x77396e8eb6bdc1d707e1470c8eec018f4663baf4","type":"artist","uuid":"dd849ce2-512a-4108-badf-c54d93461153"}
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 0xafcfbd173fac1f1a4f796bd1cdc5e9f11efbbe0fed15f7a5fdd83f0cab8a6fed. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd849ce2-512a-4108-badf-c54d93461153.json and https://artists.proofprofile.net/proofs/artist/dd849ce2-512a-4108-badf-c54d93461153.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T06:14:42Z
  text: {"copyright_id":"0xafcfbd173fac1f1a4f796bd1cdc5e9f11efbbe0fed15f7a5fdd83f0cab8a6fed","name":"La Melincué Tango Dúo","registered_at":"2026-06-21T05:23:34Z","symbol":"NIM1832773","token_address":"0x77396e8eb6bdc1d707e1470c8eec018f4663baf4","type":"artist","uuid":"dd849ce2-512a-4108-badf-c54d93461153"}
album: Rinconcito Arrabalero EP
  type: MusicAlbum
  date published: 2023-03-10