Raf
type: MusicGroup
genre: drum and bass
genre: jungle
popularity: 2
followers: 622
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf7efc2c31da710abd0ed1cf5a76be1e7093d70f7e4d191969ee736c8dd4cf524
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d56e744e-c0ca-439b-ac87-cdd21bbf6ffd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d56e744e-c0ca-439b-ac87-cdd21bbf6ffd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d56e744e-c0ca-439b-ac87-cdd21bbf6ffd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
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 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 0xf7efc2c31da710abd0ed1cf5a76be1e7093d70f7e4d191969ee736c8dd4cf524. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d56e744e-c0ca-439b-ac87-cdd21bbf6ffd.json and https://artists.proofprofile.net/proofs/artist/d56e744e-c0ca-439b-ac87-cdd21bbf6ffd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
album: Birch Sap
  type: MusicAlbum
  date published: 2011-01-17
album: Come on!
  type: MusicAlbum
  date published: 2014-02-03
album: La voix des morts
  type: MusicAlbum
  date published: 2016-07-06
album: As Tuas Amigas
  type: MusicAlbum
  date published: 2018-06-17
album: Saudades
  type: MusicAlbum
  date published: 2019-01-07
album: Chauve Qui Peut
  type: MusicAlbum
  date published: 2021-05-22