Blackwülf
type: MusicGroup
genre: doom metal
genre: sludge metal
genre: space rock
genre: stoner rock
popularity: 3
followers: 1636
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x42415cf3dcc5c42201117dbb0bdff59d7029580fd092010ec9e7ea19248e08e4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a18380c5-41fa-4863-8111-470abb446b85.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a18380c5-41fa-4863-8111-470abb446b85.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a18380c5-41fa-4863-8111-470abb446b85
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x42415cf3dcc5c42201117dbb0bdff59d7029580fd092010ec9e7ea19248e08e4","name":"Blackwülf","registered_at":"2026-06-20T06:01:06Z","symbol":"NIM1533490","token_address":"0xdcc11086a7cb4ab37b4a59b159803104c83b13fd","type":"artist","uuid":"a18380c5-41fa-4863-8111-470abb446b85"}
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 0x42415cf3dcc5c42201117dbb0bdff59d7029580fd092010ec9e7ea19248e08e4. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a18380c5-41fa-4863-8111-470abb446b85.json and https://artists.proofprofile.net/proofs/artist/a18380c5-41fa-4863-8111-470abb446b85.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x42415cf3dcc5c42201117dbb0bdff59d7029580fd092010ec9e7ea19248e08e4","name":"Blackwülf","registered_at":"2026-06-20T06:01:06Z","symbol":"NIM1533490","token_address":"0xdcc11086a7cb4ab37b4a59b159803104c83b13fd","type":"artist","uuid":"a18380c5-41fa-4863-8111-470abb446b85"}
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  type: MusicAlbum
  date published: 2013-07-03
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  date published: 2015-12-11
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