Duffy
type: MusicGroup
popularity: 10
followers: 374
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x79a096da7742e0ebe033ba0a5d8f1486b157b125c8365db5f6e0b527cd61450e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4d7a3227-fa34-4160-ac93-0a9b789e84c7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4d7a3227-fa34-4160-ac93-0a9b789e84c7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4d7a3227-fa34-4160-ac93-0a9b789e84c7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
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 0x79a096da7742e0ebe033ba0a5d8f1486b157b125c8365db5f6e0b527cd61450e. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4d7a3227-fa34-4160-ac93-0a9b789e84c7.json and https://artists.proofprofile.net/proofs/artist/4d7a3227-fa34-4160-ac93-0a9b789e84c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: IF ONLY I KNEW
  type: MusicAlbum
  date published: 2018-09-16
album: IF ONLY I KNEW
  type: MusicAlbum
  date published: 2018-09-16
album: DISTANT
  type: MusicAlbum
  date published: 2018-09-27
album: GLO UP
  type: MusicAlbum
  date published: 2019-02-05
album: ICEDCREAM 2
  type: MusicAlbum
  date published: 2019-03-01
album: WEEKEND
  type: MusicAlbum
  date published: 2019-07-01
album: WEEKEND
  type: MusicAlbum
  date published: 2019-07-01
album: Honestly
  type: MusicAlbum
  date published: 2020-06-19
album: IN AN OUT (Freestyle)
  type: MusicAlbum
  date published: 2020-06-19
album: You Dont Really Care About Me (Freestyle)
  type: MusicAlbum
  date published: 2022-05-22
album: LEVEL 6
  type: MusicAlbum
  date published: 2022-09-25