Joe Barr
type: MusicGroup
genre: blues
description: Joe Barr (October 19, 1944 – July 11, 2008) was an American technology journalist, an editor and writer for the SourceForge sites Linux.com and IT Manager's Journal. A former programmer, Barr had wor
popularity: 11
followers: 210
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x95b4778fdd425026dd5d1025e02865b9d512938c8f41613910adf0b99c3fed3c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a222068c-e42d-4112-ab1a-baf0a3da2686.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a222068c-e42d-4112-ab1a-baf0a3da2686.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a222068c-e42d-4112-ab1a-baf0a3da2686
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:47:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x95b4778fdd425026dd5d1025e02865b9d512938c8f41613910adf0b99c3fed3c","name":"Joe Barr","registered_at":"2026-06-14T21:29:28Z","symbol":"NIM0582041","token_address":"0x57541d0964838bb170ee4d03a8c26eafaa4d5898","type":"artist","uuid":"a222068c-e42d-4112-ab1a-baf0a3da2686"}
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 0x95b4778fdd425026dd5d1025e02865b9d512938c8f41613910adf0b99c3fed3c. 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/a222068c-e42d-4112-ab1a-baf0a3da2686.json and https://artists.proofprofile.net/proofs/artist/a222068c-e42d-4112-ab1a-baf0a3da2686.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x95b4778fdd425026dd5d1025e02865b9d512938c8f41613910adf0b99c3fed3c","name":"Joe Barr","registered_at":"2026-06-14T21:29:28Z","symbol":"NIM0582041","token_address":"0x57541d0964838bb170ee4d03a8c26eafaa4d5898","type":"artist","uuid":"a222068c-e42d-4112-ab1a-baf0a3da2686"}
album: Where I Stand
  type: MusicAlbum
  date published: 2005-02-02
album: Drown in My Own Tears
  type: MusicAlbum
  date published: 2021-10-01
album: Soul for the Heart
  type: MusicAlbum
  date published: 2021-10-22