Hap Boyer
type: MusicGroup
genre: polka
popularity: 3
followers: 77
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5e3c650306298136ee817fbb6754ba0183b55789b97ad08846ed03bbae376871
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953976
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953976
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2bfa8b8f-8a49-4041-ad96-4e80d8730b1a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2bfa8b8f-8a49-4041-ad96-4e80d8730b1a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2bfa8b8f-8a49-4041-ad96-4e80d8730b1a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:55:36Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5e3c650306298136ee817fbb6754ba0183b55789b97ad08846ed03bbae376871","name":"Hap Boyer","registered_at":"2026-06-16T04:49:19Z","symbol":"NIM0942470","token_address":"0xa97e2d340a87549a7f90dd771ea61d0b7ca96167","type":"artist","uuid":"2bfa8b8f-8a49-4041-ad96-4e80d8730b1a"}
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 0x5e3c650306298136ee817fbb6754ba0183b55789b97ad08846ed03bbae376871. Chain 2 (Bitcoin): anchored in block 953976 (2026-06-16T16:55:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2bfa8b8f-8a49-4041-ad96-4e80d8730b1a.json and https://artists.proofprofile.net/proofs/artist/2bfa8b8f-8a49-4041-ad96-4e80d8730b1a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:55:36Z
  text: {"copyright_id":"0x5e3c650306298136ee817fbb6754ba0183b55789b97ad08846ed03bbae376871","name":"Hap Boyer","registered_at":"2026-06-16T04:49:19Z","symbol":"NIM0942470","token_address":"0xa97e2d340a87549a7f90dd771ea61d0b7ca96167","type":"artist","uuid":"2bfa8b8f-8a49-4041-ad96-4e80d8730b1a"}
album: Fiddling Metis Style
  type: MusicAlbum
  date published: 2006-06-28
album: The Very Best of Hap Boyer
  type: MusicAlbum
  date published: 2012-11-13