Marvin
type: MusicGroup
popularity: 2
followers: 316
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x792b7021b941c2ea39054ea736e81d441788694d21c1e0f2c73aeaa9dbf64b88
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bb51d1c6-bf01-42be-a00d-5825a40685f0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bb51d1c6-bf01-42be-a00d-5825a40685f0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bb51d1c6-bf01-42be-a00d-5825a40685f0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
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 0x792b7021b941c2ea39054ea736e81d441788694d21c1e0f2c73aeaa9dbf64b88. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb51d1c6-bf01-42be-a00d-5825a40685f0.json and https://artists.proofprofile.net/proofs/artist/bb51d1c6-bf01-42be-a00d-5825a40685f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
album: Ga maar door
  type: MusicAlbum
  date published: 2010-01-17
album: Liefdesverlangen
  type: MusicAlbum
  date published: 2011-03-29
album: Fiësta Accordeon
  type: MusicAlbum
  date published: 2012-03-25
album: Ben zo verliefd op jou
  type: MusicAlbum
  date published: 2015-01-28
album: Ben zo verliefd op jou
  type: MusicAlbum
  date published: 2015-01-28
album: Word Jij Ooit Van Mij
  type: MusicAlbum
  date published: 2016-01-15
album: Jij Hoort In Mijn Leven
  type: MusicAlbum
  date published: 2017-08-18
album: Ik Weet Niet Wat Je Doet
  type: MusicAlbum
  date published: 2018-07-06
album: Ik weet niet wat je doet
  type: MusicAlbum
  date published: 2018-07-06
album: Als Zij Naar Me Kijkt
  type: MusicAlbum
  date published: 2019-05-31