Fred A.
type: MusicGroup
genre: cold wave
popularity: 3
followers: 607
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4fe333e0286983f26699c5537ba9bcf797be3913fba42696e92f64b0a4c2da40
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953972
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953972
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a98ba75-3f0c-44c2-b8d3-b5a0dd30623a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a98ba75-3f0c-44c2-b8d3-b5a0dd30623a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2a98ba75-3f0c-44c2-b8d3-b5a0dd30623a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:31:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4fe333e0286983f26699c5537ba9bcf797be3913fba42696e92f64b0a4c2da40","name":"Fred A.","registered_at":"2026-06-16T04:21:53Z","symbol":"NIM0935915","token_address":"0x46e83493130ec8c067cf86f5b09f2c788d6a8104","type":"artist","uuid":"2a98ba75-3f0c-44c2-b8d3-b5a0dd30623a"}
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 0x4fe333e0286983f26699c5537ba9bcf797be3913fba42696e92f64b0a4c2da40. Chain 2 (Bitcoin): anchored in block 953972 (2026-06-16T16:31:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a98ba75-3f0c-44c2-b8d3-b5a0dd30623a.json and https://artists.proofprofile.net/proofs/artist/2a98ba75-3f0c-44c2-b8d3-b5a0dd30623a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:31:10Z
  text: {"copyright_id":"0x4fe333e0286983f26699c5537ba9bcf797be3913fba42696e92f64b0a4c2da40","name":"Fred A.","registered_at":"2026-06-16T04:21:53Z","symbol":"NIM0935915","token_address":"0x46e83493130ec8c067cf86f5b09f2c788d6a8104","type":"artist","uuid":"2a98ba75-3f0c-44c2-b8d3-b5a0dd30623a"}
album: De Angst Voorbij
  type: MusicAlbum
  date published: 2020-02-17