Chór Archikatedry Warszawskiej
type: MusicGroup
popularity: 7
followers: 442
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e4454a20f8434453c09d4bf972942d11fff43691a700a4a6ff457f2834b1731
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e9309bd8-57c0-42f2-80c3-3556712a4f40.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e9309bd8-57c0-42f2-80c3-3556712a4f40.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e9309bd8-57c0-42f2-80c3-3556712a4f40
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8e4454a20f8434453c09d4bf972942d11fff43691a700a4a6ff457f2834b1731","name":"Chór Archikatedry Warszawskiej","registered_at":"2026-06-21T09:56:42Z","symbol":"NIM1893377","token_address":"0x871dd1dd7998d90cbe063af510328094ffe8914a","type":"artist","uuid":"e9309bd8-57c0-42f2-80c3-3556712a4f40"}
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 0x8e4454a20f8434453c09d4bf972942d11fff43691a700a4a6ff457f2834b1731. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e9309bd8-57c0-42f2-80c3-3556712a4f40.json and https://artists.proofprofile.net/proofs/artist/e9309bd8-57c0-42f2-80c3-3556712a4f40.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x8e4454a20f8434453c09d4bf972942d11fff43691a700a4a6ff457f2834b1731","name":"Chór Archikatedry Warszawskiej","registered_at":"2026-06-21T09:56:42Z","symbol":"NIM1893377","token_address":"0x871dd1dd7998d90cbe063af510328094ffe8914a","type":"artist","uuid":"e9309bd8-57c0-42f2-80c3-3556712a4f40"}
album: Kolędy - Bóg się Rodzi
  type: MusicAlbum
  date published: 2014-07-28
  track: Dzisiaj w Betlejem
    type: MusicRecording
    duration: PT2M27S
    duration ms: 147906
    explicit: false
    by artist: Chór Archikatedry Warszawskiej
    in album: Kolędy - Bóg się Rodzi
      type: MusicAlbum
      date published: 2014-07-28
    isrc code: US6R21443829
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T09:26:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd46ecdabd2f1e8326f481db57938b81ee289af527b130a59239f41330ab92af9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958991
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958991
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6R21443829
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T12:28:24Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46ecdabd2f1e8326f481db57938b81ee289af527b130a59239f41330ab92af9. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:28:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6R21443829.
      date published: 2026-07-21T12:28:24Z
    audio: Dzisiaj w Betlejem
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 116.238
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.487
      additional property: Energy
        type: PropertyValue
        value: 0.242
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.983
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.099
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.507
      additional property: Loudness (dB)
        type: PropertyValue
        value: -17.843
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major