Demon Sacrifice
type: MusicGroup
genre: black metal
popularity: 4
followers: 229
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7447c1efe509f6e70b425d4ba0b0f0e5284529f536574e8f924dcfba455b1047
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/decae74d-1d4e-4e6e-b792-b42251a2ed55.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/decae74d-1d4e-4e6e-b792-b42251a2ed55.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/decae74d-1d4e-4e6e-b792-b42251a2ed55
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7447c1efe509f6e70b425d4ba0b0f0e5284529f536574e8f924dcfba455b1047","name":"Demon Sacrifice","registered_at":"2026-06-21T05:59:05Z","symbol":"NIM1841379","token_address":"0x8950130d9df9453743d11106d45772dc52897054","type":"artist","uuid":"decae74d-1d4e-4e6e-b792-b42251a2ed55"}
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 0x7447c1efe509f6e70b425d4ba0b0f0e5284529f536574e8f924dcfba455b1047. 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/decae74d-1d4e-4e6e-b792-b42251a2ed55.json and https://artists.proofprofile.net/proofs/artist/decae74d-1d4e-4e6e-b792-b42251a2ed55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x7447c1efe509f6e70b425d4ba0b0f0e5284529f536574e8f924dcfba455b1047","name":"Demon Sacrifice","registered_at":"2026-06-21T05:59:05Z","symbol":"NIM1841379","token_address":"0x8950130d9df9453743d11106d45772dc52897054","type":"artist","uuid":"decae74d-1d4e-4e6e-b792-b42251a2ed55"}
album: Under the Blacklight of Divine
  type: MusicAlbum
  date published: 2024-07-24