A. Cooper
type: MusicGroup
popularity: 13
followers: 154
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf5b64fc4b94a59aadf0bd716d0b455ed956713de0fd5e0e473ce0bc0316cd3f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3717c82a-3cd4-4302-bf6d-38a2ac7cf868.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3717c82a-3cd4-4302-bf6d-38a2ac7cf868.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3717c82a-3cd4-4302-bf6d-38a2ac7cf868
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xaf5b64fc4b94a59aadf0bd716d0b455ed956713de0fd5e0e473ce0bc0316cd3f","name":"A. Cooper","registered_at":"2026-06-14T10:11:51Z","symbol":"NIM0420422","token_address":"0x5ab9ed5bb140d21124675501465bcb5135b04ea9","type":"artist","uuid":"3717c82a-3cd4-4302-bf6d-38a2ac7cf868"}
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 0xaf5b64fc4b94a59aadf0bd716d0b455ed956713de0fd5e0e473ce0bc0316cd3f. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3717c82a-3cd4-4302-bf6d-38a2ac7cf868.json and https://artists.proofprofile.net/proofs/artist/3717c82a-3cd4-4302-bf6d-38a2ac7cf868.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0xaf5b64fc4b94a59aadf0bd716d0b455ed956713de0fd5e0e473ce0bc0316cd3f","name":"A. Cooper","registered_at":"2026-06-14T10:11:51Z","symbol":"NIM0420422","token_address":"0x5ab9ed5bb140d21124675501465bcb5135b04ea9","type":"artist","uuid":"3717c82a-3cd4-4302-bf6d-38a2ac7cf868"}