Cobra
type: MusicGroup
popularity: 6
followers: 174
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xefe94747caf0da7d4c561901aad753015acadc808717c273ee1f53cdda667cde
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e449bcfe-1606-40e3-9e1a-b8a46b1212a2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e449bcfe-1606-40e3-9e1a-b8a46b1212a2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e449bcfe-1606-40e3-9e1a-b8a46b1212a2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe94747caf0da7d4c561901aad753015acadc808717c273ee1f53cdda667cde. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e449bcfe-1606-40e3-9e1a-b8a46b1212a2.json and https://artists.proofprofile.net/proofs/artist/e449bcfe-1606-40e3-9e1a-b8a46b1212a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
album: Dit Is Hard.
  type: MusicAlbum
  date published: 2017-06-18
album: CobraWave
  type: MusicAlbum
  date published: 2018-03-09
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  type: MusicAlbum
  date published: 2018-10-01
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  type: MusicAlbum
  date published: 2019-09-27
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  type: MusicAlbum
  date published: 2019-10-11
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  type: MusicAlbum
  date published: 2019-10-25
album: Mary Jane
  type: MusicAlbum
  date published: 2019-11-08
album: Rocky III
  type: MusicAlbum
  date published: 2019-11-22
album: Marty McFly
  type: MusicAlbum
  date published: 2019-12-06
album: Niets Doen Is Deadly
  type: MusicAlbum
  date published: 2020-01-24
album: Tio Jonny
  type: MusicAlbum
  date published: 2020-02-19
album: M.J.I.B.
  type: MusicAlbum
  date published: 2020-11-06
album: PERSEPHONE
  type: MusicAlbum
  date published: 2023-04-07
album: ENZIZI
  type: MusicAlbum
  date published: 2024-01-19