Boni Pueri
type: MusicGroup
description: Boni Pueri is a Czech boys' choir founded in 1982, which has become one of Europe's most famous musical ensembles. Choir The Czech boys' choir Boni Pueri ("Good Boys") has held more than 2,500 concer
popularity: 10
followers: 499
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc4a68c0955463f853374eddd3f1eeb05e1c611bcfb5daec15238f55d626b3f4d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954139
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954139
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7eba75d0-7470-4d2e-98a1-0edaf549382f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7eba75d0-7470-4d2e-98a1-0edaf549382f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7eba75d0-7470-4d2e-98a1-0edaf549382f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T21:12:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc4a68c0955463f853374eddd3f1eeb05e1c611bcfb5daec15238f55d626b3f4d","name":"Boni Pueri","registered_at":"2026-06-17T10:11:12Z","symbol":"NIM1362854","token_address":"0x4b42b6ffc82d52a714efec13d511acbee5e1c6eb","type":"artist","uuid":"7eba75d0-7470-4d2e-98a1-0edaf549382f"}
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 0xc4a68c0955463f853374eddd3f1eeb05e1c611bcfb5daec15238f55d626b3f4d. Chain 2 (Bitcoin): anchored in block 954141 (2026-06-17T21:14:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7eba75d0-7470-4d2e-98a1-0edaf549382f.json and https://artists.proofprofile.net/proofs/artist/7eba75d0-7470-4d2e-98a1-0edaf549382f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T21:14:35Z
  text: {"copyright_id":"0xc4a68c0955463f853374eddd3f1eeb05e1c611bcfb5daec15238f55d626b3f4d","name":"Boni Pueri","registered_at":"2026-06-17T10:11:12Z","symbol":"NIM1362854","token_address":"0x4b42b6ffc82d52a714efec13d511acbee5e1c6eb","type":"artist","uuid":"7eba75d0-7470-4d2e-98a1-0edaf549382f"}
album: Chicago Typewriter, Pt. 5 (Original Soundtrack)
  type: MusicAlbum
  date published: 2017-05-27
  track: Time Walk
    type: MusicRecording
    duration: PT3M30S
    duration ms: 210884
    explicit: false
    by artist: Boni Pueri
    in album: Chicago Typewriter, Pt. 5 (Original Soundtrack)
      type: MusicAlbum
      date published: 2017-05-27
    isrc code: KRA491601145
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
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    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7421274cee20be3d7810fd7978d81251e84df378ce43bd711b438a413da926f2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956476
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA491601145
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T09:04:44Z
    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 0x7421274cee20be3d7810fd7978d81251e84df378ce43bd711b438a413da926f2. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/KRA491601145.
      date published: 2026-07-03T09:04:44Z
    audio: Time Walk
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 59.264
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.183
      additional property: Energy
        type: PropertyValue
        value: 0.133
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.916
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.019
      additional property: Liveness
        type: PropertyValue
        value: 0.142
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.054
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.289
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major