Duo Sinossi
type: MusicGroup
genre: chamber music
popularity: 14
followers: 58
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x50355b41e4f4d4dcd7536a01b23965871438126261330f20213766dd0f2dbe78
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2cb5a7c1-250e-4e26-b5d0-675f35683222.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2cb5a7c1-250e-4e26-b5d0-675f35683222.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2cb5a7c1-250e-4e26-b5d0-675f35683222
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x50355b41e4f4d4dcd7536a01b23965871438126261330f20213766dd0f2dbe78","name":"Duo Sinossi","registered_at":"2026-06-14T09:09:53Z","symbol":"NIM0405645","token_address":"0x65892a4afffe232d01a71225ab309af8325f4980","type":"artist","uuid":"2cb5a7c1-250e-4e26-b5d0-675f35683222"}
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 0x50355b41e4f4d4dcd7536a01b23965871438126261330f20213766dd0f2dbe78. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2cb5a7c1-250e-4e26-b5d0-675f35683222.json and https://artists.proofprofile.net/proofs/artist/2cb5a7c1-250e-4e26-b5d0-675f35683222.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:41:45Z
  text: {"copyright_id":"0x50355b41e4f4d4dcd7536a01b23965871438126261330f20213766dd0f2dbe78","name":"Duo Sinossi","registered_at":"2026-06-14T09:09:53Z","symbol":"NIM0405645","token_address":"0x65892a4afffe232d01a71225ab309af8325f4980","type":"artist","uuid":"2cb5a7c1-250e-4e26-b5d0-675f35683222"}