Everett Barksdale
type: MusicGroup
description: Everett Barksdale (April 28, 1910 – January 29, 1986) was an American jazz guitarist and session musician. Biography Barksdale born in Detroit, Michigan, originally played bass and banjo before set
popularity: 18
followers: 87
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x424a8dc4035b9e5340580804371a8973e7a7a971248316f7b51c8713daab4887
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953610
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953610
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1269b75f-f320-4adc-acc2-dee1fc6edd61.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1269b75f-f320-4adc-acc2-dee1fc6edd61.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1269b75f-f320-4adc-acc2-dee1fc6edd61
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T07:58:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x424a8dc4035b9e5340580804371a8973e7a7a971248316f7b51c8713daab4887","name":"Everett Barksdale","registered_at":"2026-06-14T06:25:24Z","symbol":"NIM0366444","token_address":"0x521175e6086887eb62272aa9795d3111f9a9d727","type":"artist","uuid":"1269b75f-f320-4adc-acc2-dee1fc6edd61"}
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 0x424a8dc4035b9e5340580804371a8973e7a7a971248316f7b51c8713daab4887. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1269b75f-f320-4adc-acc2-dee1fc6edd61.json and https://artists.proofprofile.net/proofs/artist/1269b75f-f320-4adc-acc2-dee1fc6edd61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T07:58:09Z
  text: {"copyright_id":"0x424a8dc4035b9e5340580804371a8973e7a7a971248316f7b51c8713daab4887","name":"Everett Barksdale","registered_at":"2026-06-14T06:25:24Z","symbol":"NIM0366444","token_address":"0x521175e6086887eb62272aa9795d3111f9a9d727","type":"artist","uuid":"1269b75f-f320-4adc-acc2-dee1fc6edd61"}