Alvin Cobb Jr.
type: MusicGroup
genre: nu jazz
popularity: 6
followers: 697
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf416103d070166e01423184b79a5cf991ba080e8e62b44dc72e356ed2031489c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f6bdaac1-146d-48da-aa12-e95c22963ae9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f6bdaac1-146d-48da-aa12-e95c22963ae9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f6bdaac1-146d-48da-aa12-e95c22963ae9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf416103d070166e01423184b79a5cf991ba080e8e62b44dc72e356ed2031489c","name":"Alvin Cobb Jr.","registered_at":"2026-06-21T15:43:02Z","symbol":"NIM1959042","token_address":"0x907dc5661c23286e83551eba16c6469f7084fcc8","type":"artist","uuid":"f6bdaac1-146d-48da-aa12-e95c22963ae9"}
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 0xf416103d070166e01423184b79a5cf991ba080e8e62b44dc72e356ed2031489c. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6bdaac1-146d-48da-aa12-e95c22963ae9.json and https://artists.proofprofile.net/proofs/artist/f6bdaac1-146d-48da-aa12-e95c22963ae9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xf416103d070166e01423184b79a5cf991ba080e8e62b44dc72e356ed2031489c","name":"Alvin Cobb Jr.","registered_at":"2026-06-21T15:43:02Z","symbol":"NIM1959042","token_address":"0x907dc5661c23286e83551eba16c6469f7084fcc8","type":"artist","uuid":"f6bdaac1-146d-48da-aa12-e95c22963ae9"}
album: Mind Your Heart
  type: MusicAlbum
  date published: 2024-04-05
album: You'll Need This Later
  type: MusicAlbum
  date published: 2024-05-03