Cookie&Choco
type: MusicGroup
popularity: 2
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xac3a66471bfece43a3eb9856f3d0a4538f59607e4554669ae8dd41b7a9eb57e8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953907
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953907
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/16da56e6-ea78-44fd-9d6e-f859764ab7b0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/16da56e6-ea78-44fd-9d6e-f859764ab7b0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/16da56e6-ea78-44fd-9d6e-f859764ab7b0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:39:24Z
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 0xac3a66471bfece43a3eb9856f3d0a4538f59607e4554669ae8dd41b7a9eb57e8. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/16da56e6-ea78-44fd-9d6e-f859764ab7b0.json and https://artists.proofprofile.net/proofs/artist/16da56e6-ea78-44fd-9d6e-f859764ab7b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
album: The Spring Best Edition
  type: MusicAlbum
  date published: 2019-09-07
album: The Summer Best Edition
  type: MusicAlbum
  date published: 2019-09-08
album: The Autumn Best Edition
  type: MusicAlbum
  date published: 2019-09-09
album: The Winter Best Edition
  type: MusicAlbum
  date published: 2019-09-10