Angelic Piano Veronika Ptáčková
type: MusicGroup
popularity: 2
followers: 43
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x132c372d9ea0ac74c364d0cd81ce6be418c535c9a8dd65613b3805865b0ea6e1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aec9769d-d947-4a6d-9c91-6f15687473fd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aec9769d-d947-4a6d-9c91-6f15687473fd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/aec9769d-d947-4a6d-9c91-6f15687473fd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x132c372d9ea0ac74c364d0cd81ce6be418c535c9a8dd65613b3805865b0ea6e1","name":"Angelic Piano Veronika Ptáčková","registered_at":"2026-06-20T10:49:23Z","symbol":"NIM1596038","token_address":"0xae8cb8afd9af8c0809a51ba910fbb53acea94170","type":"artist","uuid":"aec9769d-d947-4a6d-9c91-6f15687473fd"}
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 0x132c372d9ea0ac74c364d0cd81ce6be418c535c9a8dd65613b3805865b0ea6e1. Chain 2 (Bitcoin): anchored in block 954556 (2026-06-20T12:14:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aec9769d-d947-4a6d-9c91-6f15687473fd.json and https://artists.proofprofile.net/proofs/artist/aec9769d-d947-4a6d-9c91-6f15687473fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:14:15Z
  text: {"copyright_id":"0x132c372d9ea0ac74c364d0cd81ce6be418c535c9a8dd65613b3805865b0ea6e1","name":"Angelic Piano Veronika Ptáčková","registered_at":"2026-06-20T10:49:23Z","symbol":"NIM1596038","token_address":"0xae8cb8afd9af8c0809a51ba910fbb53acea94170","type":"artist","uuid":"aec9769d-d947-4a6d-9c91-6f15687473fd"}
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  type: MusicAlbum
  date published: 2018-09-30
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  type: MusicAlbum
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