Kaatje Acker
type: MusicGroup
popularity: 16
followers: 27
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbe9e14631a1497f08e230a23dc45aa68a4308046c8e39d7c31d6b586cb7d0b87
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953704
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953704
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/77b6ffae-925b-40d9-9f72-95ef9eb3db2c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/77b6ffae-925b-40d9-9f72-95ef9eb3db2c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/77b6ffae-925b-40d9-9f72-95ef9eb3db2c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:58:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbe9e14631a1497f08e230a23dc45aa68a4308046c8e39d7c31d6b586cb7d0b87","name":"Kaatje Acker","registered_at":"2026-06-14T17:06:12Z","symbol":"NIM0519300","token_address":"0x4c4e865a91bfba105c782552fa3f42e8441ef510","type":"artist","uuid":"77b6ffae-925b-40d9-9f72-95ef9eb3db2c"}
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 0xbe9e14631a1497f08e230a23dc45aa68a4308046c8e39d7c31d6b586cb7d0b87. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77b6ffae-925b-40d9-9f72-95ef9eb3db2c.json and https://artists.proofprofile.net/proofs/artist/77b6ffae-925b-40d9-9f72-95ef9eb3db2c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:58:38Z
  text: {"copyright_id":"0xbe9e14631a1497f08e230a23dc45aa68a4308046c8e39d7c31d6b586cb7d0b87","name":"Kaatje Acker","registered_at":"2026-06-14T17:06:12Z","symbol":"NIM0519300","token_address":"0x4c4e865a91bfba105c782552fa3f42e8441ef510","type":"artist","uuid":"77b6ffae-925b-40d9-9f72-95ef9eb3db2c"}
album: Original Nature
  type: MusicAlbum
  date published: 2022-11-13
album: Infinite Awareness
  type: MusicAlbum
  date published: 2023-02-16
album: Vaasu
  type: MusicAlbum
  date published: 2023-05-11
album: Secret Garden
  type: MusicAlbum
  date published: 2023-10-20
album: Secret Garden - Sound Bath
  type: MusicAlbum
  date published: 2024-01-26
album: Adoring
  type: MusicAlbum
  date published: 2024-04-19