Męski Zespół Muzyki Cerkiewnej Katapetasma
type: MusicGroup
popularity: 2
followers: 156
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x423288d424f7f142572e0385884c2517a5b54f50df186d8359089c3f871b3b8c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf3f75df-a9de-42d7-bd18-eb4e44e9c5fe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf3f75df-a9de-42d7-bd18-eb4e44e9c5fe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bf3f75df-a9de-42d7-bd18-eb4e44e9c5fe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x423288d424f7f142572e0385884c2517a5b54f50df186d8359089c3f871b3b8c","name":"Męski Zespół Muzyki Cerkiewnej Katapetasma","registered_at":"2026-06-20T18:42:17Z","symbol":"NIM1681955","token_address":"0x3cce3d1aea9246817cb72b2f0b079bb50b7c074c","type":"artist","uuid":"bf3f75df-a9de-42d7-bd18-eb4e44e9c5fe"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423288d424f7f142572e0385884c2517a5b54f50df186d8359089c3f871b3b8c. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf3f75df-a9de-42d7-bd18-eb4e44e9c5fe.json and https://artists.proofprofile.net/proofs/artist/bf3f75df-a9de-42d7-bd18-eb4e44e9c5fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x423288d424f7f142572e0385884c2517a5b54f50df186d8359089c3f871b3b8c","name":"Męski Zespół Muzyki Cerkiewnej Katapetasma","registered_at":"2026-06-20T18:42:17Z","symbol":"NIM1681955","token_address":"0x3cce3d1aea9246817cb72b2f0b079bb50b7c074c","type":"artist","uuid":"bf3f75df-a9de-42d7-bd18-eb4e44e9c5fe"}
album: Tryptyk Jabłeczyński
  type: MusicAlbum
  date published: 2021-06-25