Surrface
type: MusicGroup
genre: techno
popularity: 11
followers: 282
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e40e598cfe990530662d4783aaad0f78b07be95087d71c8c0741e118af0dccb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953772
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953772
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c4fd45f6-78b7-4cf9-bd8d-b89bbe0f541f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c4fd45f6-78b7-4cf9-bd8d-b89bbe0f541f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c4fd45f6-78b7-4cf9-bd8d-b89bbe0f541f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T10:33:29Z
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 0x7e40e598cfe990530662d4783aaad0f78b07be95087d71c8c0741e118af0dccb. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4fd45f6-78b7-4cf9-bd8d-b89bbe0f541f.json and https://artists.proofprofile.net/proofs/artist/c4fd45f6-78b7-4cf9-bd8d-b89bbe0f541f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T10:33:29Z
album: Crisis
  type: MusicAlbum
  date published: 2020-07-23
album: Echo
  type: MusicAlbum
  date published: 2022-03-11
album: Crisis (Hardcore Flip)
  type: MusicAlbum
  date published: 2022-06-24
album: Galm
  type: MusicAlbum
  date published: 2022-12-09
album: Golf
  type: MusicAlbum
  date published: 2023-06-09
album: Wind
  type: MusicAlbum
  date published: 2023-08-18
album: Crisis (Remix Pack)
  type: MusicAlbum
  date published: 2024-02-02
album: Bells / Midnight
  type: MusicAlbum
  date published: 2024-06-21
album: Hall
  type: MusicAlbum
  date published: 2024-09-27