Douglas Carta Viva
type: MusicGroup
popularity: 2
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x397a9d63129ff3f903e7a61d0762d65bcd3673e1ac88749c504822ac63c6b19a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5128e309-1a2e-485b-b2d2-97a30b23d55e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5128e309-1a2e-485b-b2d2-97a30b23d55e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5128e309-1a2e-485b-b2d2-97a30b23d55e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x397a9d63129ff3f903e7a61d0762d65bcd3673e1ac88749c504822ac63c6b19a","name":"Douglas Carta Viva","registered_at":"2026-06-16T17:57:48Z","symbol":"NIM1130647","token_address":"0x71344b05048c23fd9349e9e5922a26dee9f5af77","type":"artist","uuid":"5128e309-1a2e-485b-b2d2-97a30b23d55e"}
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 0x397a9d63129ff3f903e7a61d0762d65bcd3673e1ac88749c504822ac63c6b19a. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5128e309-1a2e-485b-b2d2-97a30b23d55e.json and https://artists.proofprofile.net/proofs/artist/5128e309-1a2e-485b-b2d2-97a30b23d55e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x397a9d63129ff3f903e7a61d0762d65bcd3673e1ac88749c504822ac63c6b19a","name":"Douglas Carta Viva","registered_at":"2026-06-16T17:57:48Z","symbol":"NIM1130647","token_address":"0x71344b05048c23fd9349e9e5922a26dee9f5af77","type":"artist","uuid":"5128e309-1a2e-485b-b2d2-97a30b23d55e"}