Joseph Washington Jr.
type: MusicGroup
popularity: 3
followers: 229
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb72c5ffd0b7c37bbf766ba686839eecfcb5224a1d1f481dd2a1bfe6b234a77b5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953918
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953918
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1ae21e0c-e6fb-4be5-b748-ff8f4263e7cf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1ae21e0c-e6fb-4be5-b748-ff8f4263e7cf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1ae21e0c-e6fb-4be5-b748-ff8f4263e7cf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:55:04Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb72c5ffd0b7c37bbf766ba686839eecfcb5224a1d1f481dd2a1bfe6b234a77b5","name":"Joseph Washington Jr.","registered_at":"2026-06-15T22:57:58Z","symbol":"NIM0858548","token_address":"0x156d8ec809016fd213fe2a808ace5c938bf4d83a","type":"artist","uuid":"1ae21e0c-e6fb-4be5-b748-ff8f4263e7cf"}
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 0xb72c5ffd0b7c37bbf766ba686839eecfcb5224a1d1f481dd2a1bfe6b234a77b5. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ae21e0c-e6fb-4be5-b748-ff8f4263e7cf.json and https://artists.proofprofile.net/proofs/artist/1ae21e0c-e6fb-4be5-b748-ff8f4263e7cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xb72c5ffd0b7c37bbf766ba686839eecfcb5224a1d1f481dd2a1bfe6b234a77b5","name":"Joseph Washington Jr.","registered_at":"2026-06-15T22:57:58Z","symbol":"NIM0858548","token_address":"0x156d8ec809016fd213fe2a808ace5c938bf4d83a","type":"artist","uuid":"1ae21e0c-e6fb-4be5-b748-ff8f4263e7cf"}
album: Blueberry Hill b/w Look Me In The Eyes
  type: MusicAlbum
  date published: 1975-01-01
album: Shopping
  type: MusicAlbum
  date published: 2016-11-11
album: Merry Christmas to You
  type: MusicAlbum
  date published: 2016-12-02
album: Merry Christmas to You
  type: MusicAlbum
  date published: 2016-12-02