Frederick Hadland Davis
type: MusicGroup
popularity: 2
followers: 24
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe1dcaa681d694adcec46800f9f242596cea15c289f75c211563eedee3dd0cc54
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a2735db6-7969-45b0-b995-8ce22c4046ad.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a2735db6-7969-45b0-b995-8ce22c4046ad.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a2735db6-7969-45b0-b995-8ce22c4046ad
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe1dcaa681d694adcec46800f9f242596cea15c289f75c211563eedee3dd0cc54","name":"Frederick Hadland Davis","registered_at":"2026-06-20T06:20:20Z","symbol":"NIM1538615","token_address":"0x4e7be54c58809d54b42d6c6abace7f9a805f5c6b","type":"artist","uuid":"a2735db6-7969-45b0-b995-8ce22c4046ad"}
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 0xe1dcaa681d694adcec46800f9f242596cea15c289f75c211563eedee3dd0cc54. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2735db6-7969-45b0-b995-8ce22c4046ad.json and https://artists.proofprofile.net/proofs/artist/a2735db6-7969-45b0-b995-8ce22c4046ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0xe1dcaa681d694adcec46800f9f242596cea15c289f75c211563eedee3dd0cc54","name":"Frederick Hadland Davis","registered_at":"2026-06-20T06:20:20Z","symbol":"NIM1538615","token_address":"0x4e7be54c58809d54b42d6c6abace7f9a805f5c6b","type":"artist","uuid":"a2735db6-7969-45b0-b995-8ce22c4046ad"}
album: Mitos y leyendas de Japón
  type: MusicAlbum
  date published: 2021-05-17