Walter Grootaers
type: MusicGroup
popularity: 11
followers: 292
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6dd24f5fc73a5dd0a7422b3bc746e197dbb22d0edc0d1af128ccfaccb017f45d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953817
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953817
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ffa99516-8c3f-4ebf-93c4-7fbadf4e0bbb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ffa99516-8c3f-4ebf-93c4-7fbadf4e0bbb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ffa99516-8c3f-4ebf-93c4-7fbadf4e0bbb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6dd24f5fc73a5dd0a7422b3bc746e197dbb22d0edc0d1af128ccfaccb017f45d","name":"Walter Grootaers","registered_at":"2026-06-15T07:19:34Z","symbol":"NIM0722951","token_address":"0xd4c105437b430dceeeb239232caa390a68ec5952","type":"artist","uuid":"ffa99516-8c3f-4ebf-93c4-7fbadf4e0bbb"}
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 0x6dd24f5fc73a5dd0a7422b3bc746e197dbb22d0edc0d1af128ccfaccb017f45d. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ffa99516-8c3f-4ebf-93c4-7fbadf4e0bbb.json and https://artists.proofprofile.net/proofs/artist/ffa99516-8c3f-4ebf-93c4-7fbadf4e0bbb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:10:31Z
  text: {"copyright_id":"0x6dd24f5fc73a5dd0a7422b3bc746e197dbb22d0edc0d1af128ccfaccb017f45d","name":"Walter Grootaers","registered_at":"2026-06-15T07:19:34Z","symbol":"NIM0722951","token_address":"0xd4c105437b430dceeeb239232caa390a68ec5952","type":"artist","uuid":"ffa99516-8c3f-4ebf-93c4-7fbadf4e0bbb"}
album: Een Andere Soort
  type: MusicAlbum
  date published: 1993-03-29
album: Een Andere Soort
  type: MusicAlbum
  date published: 1993-03-29
album: Ik Hou Niet Meer Van Jou
  type: MusicAlbum
  date published: 1993-06-01
album: Iedere Dag
  type: MusicAlbum
  date published: 2024-05-10
album: Plaats In Je Hart
  type: MusicAlbum
  date published: 2024-05-10
album: Zij
  type: MusicAlbum
  date published: 2024-09-06
album: Optimisten Blues
  type: MusicAlbum
  date published: 2024-10-04