Cleo & Grabbarna
type: MusicGroup
genre: dansband
popularity: 11
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa6ac4013fe1a5a4105d62e96cad5fbf5976c2fd0ae0a0beee16b38dd02d755b2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953773
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953773
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ca28bc67-acc0-44be-b9b5-0bf3b57dba25.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ca28bc67-acc0-44be-b9b5-0bf3b57dba25.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ca28bc67-acc0-44be-b9b5-0bf3b57dba25
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T10:40:45Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa6ac4013fe1a5a4105d62e96cad5fbf5976c2fd0ae0a0beee16b38dd02d755b2","name":"Cleo & Grabbarna","registered_at":"2026-06-15T01:46:09Z","symbol":"NIM0643362","token_address":"0x4a75cbcb7560fdb27b6e55fb284ad8a4b0c74402","type":"artist","uuid":"ca28bc67-acc0-44be-b9b5-0bf3b57dba25"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ac4013fe1a5a4105d62e96cad5fbf5976c2fd0ae0a0beee16b38dd02d755b2. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca28bc67-acc0-44be-b9b5-0bf3b57dba25.json and https://artists.proofprofile.net/proofs/artist/ca28bc67-acc0-44be-b9b5-0bf3b57dba25.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T10:40:45Z
  text: {"copyright_id":"0xa6ac4013fe1a5a4105d62e96cad5fbf5976c2fd0ae0a0beee16b38dd02d755b2","name":"Cleo & Grabbarna","registered_at":"2026-06-15T01:46:09Z","symbol":"NIM0643362","token_address":"0x4a75cbcb7560fdb27b6e55fb284ad8a4b0c74402","type":"artist","uuid":"ca28bc67-acc0-44be-b9b5-0bf3b57dba25"}