Calle Pura 2
type: MusicGroup
genre: merengue
popularity: 2
followers: 252
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb86ff5161e42183140ea0929680f1dd656d569635f69c0774068f8dfa973637c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fc0de21f-4806-40e5-a4d2-6f21ec2ea778.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fc0de21f-4806-40e5-a4d2-6f21ec2ea778.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fc0de21f-4806-40e5-a4d2-6f21ec2ea778
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb86ff5161e42183140ea0929680f1dd656d569635f69c0774068f8dfa973637c","name":"Calle Pura 2","registered_at":"2026-06-21T17:28:52Z","symbol":"NIM1987749","token_address":"0x0c4e6281486ee4456283573b35ae8563129260d5","type":"artist","uuid":"fc0de21f-4806-40e5-a4d2-6f21ec2ea778"}
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 0xb86ff5161e42183140ea0929680f1dd656d569635f69c0774068f8dfa973637c. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc0de21f-4806-40e5-a4d2-6f21ec2ea778.json and https://artists.proofprofile.net/proofs/artist/fc0de21f-4806-40e5-a4d2-6f21ec2ea778.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0xb86ff5161e42183140ea0929680f1dd656d569635f69c0774068f8dfa973637c","name":"Calle Pura 2","registered_at":"2026-06-21T17:28:52Z","symbol":"NIM1987749","token_address":"0x0c4e6281486ee4456283573b35ae8563129260d5","type":"artist","uuid":"fc0de21f-4806-40e5-a4d2-6f21ec2ea778"}
album: Merengue Hits 2007
  type: MusicAlbum
  date published: 2007-02-01