Syd Masters
type: MusicGroup
description: REDIRECT Paul (2011 film)#Cast
popularity: 2
followers: 180
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa4b4cb68ae1d15bd29b707b500b047a95e606b81d6e325d6d10f8f110dbd9854
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04880ab4-dd6a-4667-ba98-92a1a7ccf96e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04880ab4-dd6a-4667-ba98-92a1a7ccf96e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/04880ab4-dd6a-4667-ba98-92a1a7ccf96e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa4b4cb68ae1d15bd29b707b500b047a95e606b81d6e325d6d10f8f110dbd9854","name":"Syd Masters","registered_at":"2026-06-15T15:10:48Z","symbol":"NIM0747097","token_address":"0xeca90fc00f72fe002a06d4cb0bde998059de7883","type":"artist","uuid":"04880ab4-dd6a-4667-ba98-92a1a7ccf96e"}
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 0xa4b4cb68ae1d15bd29b707b500b047a95e606b81d6e325d6d10f8f110dbd9854. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04880ab4-dd6a-4667-ba98-92a1a7ccf96e.json and https://artists.proofprofile.net/proofs/artist/04880ab4-dd6a-4667-ba98-92a1a7ccf96e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T00:30:31Z
  text: {"copyright_id":"0xa4b4cb68ae1d15bd29b707b500b047a95e606b81d6e325d6d10f8f110dbd9854","name":"Syd Masters","registered_at":"2026-06-15T15:10:48Z","symbol":"NIM0747097","token_address":"0xeca90fc00f72fe002a06d4cb0bde998059de7883","type":"artist","uuid":"04880ab4-dd6a-4667-ba98-92a1a7ccf96e"}
album: The Cowboy Sings
  type: MusicAlbum
  date published: 2013-05-21
album: Frontier Cowboy Songs
  type: MusicAlbum
  date published: 2013-06-03
album: Sunset on the Rio Grande Revisited
  type: MusicAlbum
  date published: 2018-10-09
album: Cabin Songs
  type: MusicAlbum
  date published: 2023-07-18