Exam Sounds
type: MusicGroup
popularity: 14
followers: 24
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd2b12954852dd1b7a9acc62360b83f86271e51e9e0f8e804100c9e5616ca1922
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953741
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953741
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9b31df75-ebb9-4395-8ab7-84f02aa7b133.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9b31df75-ebb9-4395-8ab7-84f02aa7b133.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9b31df75-ebb9-4395-8ab7-84f02aa7b133
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:44:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd2b12954852dd1b7a9acc62360b83f86271e51e9e0f8e804100c9e5616ca1922","name":"Exam Sounds","registered_at":"2026-06-14T20:42:03Z","symbol":"NIM0570735","token_address":"0x145d913842b7ddf898ead9e1a2c3fb40df5d9504","type":"artist","uuid":"9b31df75-ebb9-4395-8ab7-84f02aa7b133"}
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 0xd2b12954852dd1b7a9acc62360b83f86271e51e9e0f8e804100c9e5616ca1922. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b31df75-ebb9-4395-8ab7-84f02aa7b133.json and https://artists.proofprofile.net/proofs/artist/9b31df75-ebb9-4395-8ab7-84f02aa7b133.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0xd2b12954852dd1b7a9acc62360b83f86271e51e9e0f8e804100c9e5616ca1922","name":"Exam Sounds","registered_at":"2026-06-14T20:42:03Z","symbol":"NIM0570735","token_address":"0x145d913842b7ddf898ead9e1a2c3fb40df5d9504","type":"artist","uuid":"9b31df75-ebb9-4395-8ab7-84f02aa7b133"}