Kammerchor Domgymnasium Verden
type: MusicGroup
genre: choral
popularity: 2
followers: 41
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x940793f6f3d70330a3baf3e24a915c2c31a4e1ee7a95f3ed4ad586c34424b3e1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954032
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954032
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3bd0b4a6-67cf-4c58-9f72-cd4bbfca0cd3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3bd0b4a6-67cf-4c58-9f72-cd4bbfca0cd3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3bd0b4a6-67cf-4c58-9f72-cd4bbfca0cd3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:59:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x940793f6f3d70330a3baf3e24a915c2c31a4e1ee7a95f3ed4ad586c34424b3e1","name":"Kammerchor Domgymnasium Verden","registered_at":"2026-06-16T10:27:39Z","symbol":"NIM1023258","token_address":"0xf8b307da630ff4c86b192041b7418964a4113425","type":"artist","uuid":"3bd0b4a6-67cf-4c58-9f72-cd4bbfca0cd3"}
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 0x940793f6f3d70330a3baf3e24a915c2c31a4e1ee7a95f3ed4ad586c34424b3e1. Chain 2 (Bitcoin): anchored in block 954032 (2026-06-17T01:59:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3bd0b4a6-67cf-4c58-9f72-cd4bbfca0cd3.json and https://artists.proofprofile.net/proofs/artist/3bd0b4a6-67cf-4c58-9f72-cd4bbfca0cd3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T01:59:41Z
  text: {"copyright_id":"0x940793f6f3d70330a3baf3e24a915c2c31a4e1ee7a95f3ed4ad586c34424b3e1","name":"Kammerchor Domgymnasium Verden","registered_at":"2026-06-16T10:27:39Z","symbol":"NIM1023258","token_address":"0xf8b307da630ff4c86b192041b7418964a4113425","type":"artist","uuid":"3bd0b4a6-67cf-4c58-9f72-cd4bbfca0cd3"}
album: Time TO SING
  type: MusicAlbum
  date published: 2024-02-20