John Henry Barbee
type: MusicGroup
genre: blues
genre: classic blues
genre: country blues
description: John Henry Barbee (November 14, 1905 – November 3, 1964)Wynn, Ron. [ John Henry Barbee: Biography]. Allmusic was an American blues singer and guitarist. He was born in Henning, Tennessee. He claimed t
popularity: 2
followers: 510
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x29f2be2a2ee477f118dcb6086a235e73d41f302d46e9db196155f671c3aac5ce
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce12dc0a-cd96-4791-921e-5df6a51afdbd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce12dc0a-cd96-4791-921e-5df6a51afdbd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ce12dc0a-cd96-4791-921e-5df6a51afdbd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x29f2be2a2ee477f118dcb6086a235e73d41f302d46e9db196155f671c3aac5ce","name":"John Henry Barbee","registered_at":"2026-06-21T00:13:46Z","symbol":"NIM1756078","token_address":"0xb7c12853241aa5edac4788c165e1be4669476ba8","type":"artist","uuid":"ce12dc0a-cd96-4791-921e-5df6a51afdbd"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f2be2a2ee477f118dcb6086a235e73d41f302d46e9db196155f671c3aac5ce. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce12dc0a-cd96-4791-921e-5df6a51afdbd.json and https://artists.proofprofile.net/proofs/artist/ce12dc0a-cd96-4791-921e-5df6a51afdbd.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x29f2be2a2ee477f118dcb6086a235e73d41f302d46e9db196155f671c3aac5ce","name":"John Henry Barbee","registered_at":"2026-06-21T00:13:46Z","symbol":"NIM1756078","token_address":"0xb7c12853241aa5edac4788c165e1be4669476ba8","type":"artist","uuid":"ce12dc0a-cd96-4791-921e-5df6a51afdbd"}
album: Blues Masters, Vol. 3
  type: MusicAlbum
  date published: 1991-11-20
album: Against My Will
  type: MusicAlbum
  date published: 2015-05-28
album: Top 25 Classics - The Very Best of John Henry Barbee
  type: MusicAlbum
  date published: 2021-10-22