David Kater
type: MusicGroup
genre: christmas
popularity: 12
followers: 773
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe756fd6ed5c0bc4a0bfef50787ba0c87ae9e4424311ff362dffd7f73334e6408
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953612
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953612
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1585142d-1c2d-471b-8537-0667f1cdd2cc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1585142d-1c2d-471b-8537-0667f1cdd2cc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1585142d-1c2d-471b-8537-0667f1cdd2cc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T08:22:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe756fd6ed5c0bc4a0bfef50787ba0c87ae9e4424311ff362dffd7f73334e6408","name":"David Kater","registered_at":"2026-06-14T06:45:24Z","symbol":"NIM0371183","token_address":"0x29290cf2a73497661f9952e2070c4ad92249050f","type":"artist","uuid":"1585142d-1c2d-471b-8537-0667f1cdd2cc"}
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 0xe756fd6ed5c0bc4a0bfef50787ba0c87ae9e4424311ff362dffd7f73334e6408. Chain 2 (Bitcoin): anchored in block 953612 (2026-06-14T08:22:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1585142d-1c2d-471b-8537-0667f1cdd2cc.json and https://artists.proofprofile.net/proofs/artist/1585142d-1c2d-471b-8537-0667f1cdd2cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T08:22:11Z
  text: {"copyright_id":"0xe756fd6ed5c0bc4a0bfef50787ba0c87ae9e4424311ff362dffd7f73334e6408","name":"David Kater","registered_at":"2026-06-14T06:45:24Z","symbol":"NIM0371183","token_address":"0x29290cf2a73497661f9952e2070c4ad92249050f","type":"artist","uuid":"1585142d-1c2d-471b-8537-0667f1cdd2cc"}
album: Please Santa
  type: MusicAlbum
  date published: 2020-11-15
album: David Kater Simple Things (ReRelease)
  type: MusicAlbum
  date published: 2023-03-07
album: Cerebral Volume 1
  type: MusicAlbum
  date published: 2024-06-01