Oscar Brashear
type: MusicGroup
description: Oscar Brashear (August 18, 1944 – July 7, 2023) was an American jazz trumpeterFeather, Leonard & Gitler, Ira The Biographical Encyclopedia of Jazz Oxford University Press: 2007 , Google books and sess
popularity: 11
followers: 98
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f4182f1e11d085e01421cfce4f05921cb7a4a9ee39649dd3d9aaf590bf820af
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953602
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953602
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0eccb30b-ba29-490e-a1f7-57fc64fa17db.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0eccb30b-ba29-490e-a1f7-57fc64fa17db.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0eccb30b-ba29-490e-a1f7-57fc64fa17db
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T06:58:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9f4182f1e11d085e01421cfce4f05921cb7a4a9ee39649dd3d9aaf590bf820af","name":"Oscar Brashear","registered_at":"2026-06-14T06:01:41Z","symbol":"NIM0360790","token_address":"0x4dc16a15eb4767ae251d0c13a8635b8c8c656415","type":"artist","uuid":"0eccb30b-ba29-490e-a1f7-57fc64fa17db"}
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 0x9f4182f1e11d085e01421cfce4f05921cb7a4a9ee39649dd3d9aaf590bf820af. Chain 2 (Bitcoin): anchored in block 953602 (2026-06-14T06:58:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0eccb30b-ba29-490e-a1f7-57fc64fa17db.json and https://artists.proofprofile.net/proofs/artist/0eccb30b-ba29-490e-a1f7-57fc64fa17db.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T06:58:10Z
  text: {"copyright_id":"0x9f4182f1e11d085e01421cfce4f05921cb7a4a9ee39649dd3d9aaf590bf820af","name":"Oscar Brashear","registered_at":"2026-06-14T06:01:41Z","symbol":"NIM0360790","token_address":"0x4dc16a15eb4767ae251d0c13a8635b8c8c656415","type":"artist","uuid":"0eccb30b-ba29-490e-a1f7-57fc64fa17db"}