Roy Stevens
type: MusicGroup
description: thumb|Roy Stevens Roy Stevens (1916–1988) was an American trumpet player, Stevens-Costello System brass embouchure teacher, and author of the Embouchure Self-Analysis: Stevens-Costello Triple C Embouc
popularity: 2
followers: 11
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbc1f4d5a35a7acbc6eb3ac6c16b6db3feafed8f677d2541c84ddfb944c048e7f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/98d3c016-4e6c-4410-80f7-d18cdf421c91.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/98d3c016-4e6c-4410-80f7-d18cdf421c91.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/98d3c016-4e6c-4410-80f7-d18cdf421c91
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbc1f4d5a35a7acbc6eb3ac6c16b6db3feafed8f677d2541c84ddfb944c048e7f","name":"Roy Stevens","registered_at":"2026-06-17T19:00:40Z","symbol":"NIM1489115","token_address":"0x5ce6531a65abf46d4f60412dda0c310945745d8e","type":"artist","uuid":"98d3c016-4e6c-4410-80f7-d18cdf421c91"}
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 0xbc1f4d5a35a7acbc6eb3ac6c16b6db3feafed8f677d2541c84ddfb944c048e7f. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/98d3c016-4e6c-4410-80f7-d18cdf421c91.json and https://artists.proofprofile.net/proofs/artist/98d3c016-4e6c-4410-80f7-d18cdf421c91.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xbc1f4d5a35a7acbc6eb3ac6c16b6db3feafed8f677d2541c84ddfb944c048e7f","name":"Roy Stevens","registered_at":"2026-06-17T19:00:40Z","symbol":"NIM1489115","token_address":"0x5ce6531a65abf46d4f60412dda0c310945745d8e","type":"artist","uuid":"98d3c016-4e6c-4410-80f7-d18cdf421c91"}