David Carr Jr.
type: MusicGroup
genre: smooth jazz
popularity: 5
followers: 34
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xba609eb3ce19e74e08c12039845d4a149e8ea8607400ab39d6ad54c8361308fa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953973
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953973
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a591e7b-f144-40b6-a83e-067ded83aaa2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a591e7b-f144-40b6-a83e-067ded83aaa2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2a591e7b-f144-40b6-a83e-067ded83aaa2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:37:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xba609eb3ce19e74e08c12039845d4a149e8ea8607400ab39d6ad54c8361308fa","name":"David Carr Jr.","registered_at":"2026-06-16T04:23:15Z","symbol":"NIM0936248","token_address":"0xbcca750543c02cd4f432a2eec5e8d5e351438f1e","type":"artist","uuid":"2a591e7b-f144-40b6-a83e-067ded83aaa2"}
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 0xba609eb3ce19e74e08c12039845d4a149e8ea8607400ab39d6ad54c8361308fa. Chain 2 (Bitcoin): anchored in block 953973 (2026-06-16T16:37:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a591e7b-f144-40b6-a83e-067ded83aaa2.json and https://artists.proofprofile.net/proofs/artist/2a591e7b-f144-40b6-a83e-067ded83aaa2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:37:07Z
  text: {"copyright_id":"0xba609eb3ce19e74e08c12039845d4a149e8ea8607400ab39d6ad54c8361308fa","name":"David Carr Jr.","registered_at":"2026-06-16T04:23:15Z","symbol":"NIM0936248","token_address":"0xbcca750543c02cd4f432a2eec5e8d5e351438f1e","type":"artist","uuid":"2a591e7b-f144-40b6-a83e-067ded83aaa2"}
album: Purple
  type: MusicAlbum
  date published: 2016-04-25
album: Pure Glass
  type: MusicAlbum
  date published: 2016-10-01