Adriaan Valk
type: MusicGroup
popularity: 3
followers: 245
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfd174e327cf41fa4fb798d179fba12cfbfaf387b66d2fa511b36b4c872d2080c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953968
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953968
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/28dec80e-db3d-473c-a571-479f9e13b7b0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/28dec80e-db3d-473c-a571-479f9e13b7b0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/28dec80e-db3d-473c-a571-479f9e13b7b0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:01:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfd174e327cf41fa4fb798d179fba12cfbfaf387b66d2fa511b36b4c872d2080c","name":"Adriaan Valk","registered_at":"2026-06-16T03:43:22Z","symbol":"NIM0926709","token_address":"0x01a949f04d0b4c1a432e64762238db6308596850","type":"artist","uuid":"28dec80e-db3d-473c-a571-479f9e13b7b0"}
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 0xfd174e327cf41fa4fb798d179fba12cfbfaf387b66d2fa511b36b4c872d2080c. Chain 2 (Bitcoin): anchored in block 953968 (2026-06-16T16:01:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28dec80e-db3d-473c-a571-479f9e13b7b0.json and https://artists.proofprofile.net/proofs/artist/28dec80e-db3d-473c-a571-479f9e13b7b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:01:49Z
  text: {"copyright_id":"0xfd174e327cf41fa4fb798d179fba12cfbfaf387b66d2fa511b36b4c872d2080c","name":"Adriaan Valk","registered_at":"2026-06-16T03:43:22Z","symbol":"NIM0926709","token_address":"0x01a949f04d0b4c1a432e64762238db6308596850","type":"artist","uuid":"28dec80e-db3d-473c-a571-479f9e13b7b0"}
album: Job; Impressions for Soprano-Saxophone
  type: MusicAlbum
  date published: 2023-02-13
album: Duet - Soloworks - Quartets
  type: MusicAlbum
  date published: 2023-02-14
album: Four String Quartets from the Mineralcycle
  type: MusicAlbum
  date published: 2023-04-18
album: Experience - Trios - Solos - African Percussion
  type: MusicAlbum
  date published: 2023-04-18
album: Four Quartets from the Mineralcycle for Saxophone Quartet
  type: MusicAlbum
  date published: 2023-04-19
album: Kontrasten
  type: MusicAlbum
  date published: 2024-07-19