Dunai
type: MusicGroup
popularity: 7
followers: 665
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb3a46eb072cfcb318ed8dd7bbe54ccf656d18f76f5f280bd6f0241991768a33e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954000
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954000
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31ea7b34-f006-440a-ba4c-db4adb8e1f9c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31ea7b34-f006-440a-ba4c-db4adb8e1f9c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/31ea7b34-f006-440a-ba4c-db4adb8e1f9c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:18:46Z
additional property: OTSCanonicalRecord
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 0xb3a46eb072cfcb318ed8dd7bbe54ccf656d18f76f5f280bd6f0241991768a33e. Chain 2 (Bitcoin): anchored in block 954002 (2026-06-16T20:47:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/31ea7b34-f006-440a-ba4c-db4adb8e1f9c.json and https://artists.proofprofile.net/proofs/artist/31ea7b34-f006-440a-ba4c-db4adb8e1f9c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:47:12Z
album: I Searched The World
  type: MusicAlbum
  date published: 1991-02-10
album: Soundscape
  type: MusicAlbum
  date published: 2000-02-15
album: Ukrainian Christmas Carols
  type: MusicAlbum
  date published: 2014-12-01
album: Dunai 3
  type: MusicAlbum
  date published: 2015-05-01
  track: Hey Sokoly
    type: MusicRecording
    duration: PT3M49S
    duration ms: 229189
    explicit: false
    by artist: Dunai
    in album: Dunai 3
      type: MusicAlbum
      date published: 2015-05-01
    isrc code: CAV5M1500005
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T19:47:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1b7eaaaa2e109a5c24479ba75f6b3b64e8ec724ab07f7ef4433d713eff77b8f8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958319
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958319
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAV5M1500005
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T20:12:32Z
    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 0x1b7eaaaa2e109a5c24479ba75f6b3b64e8ec724ab07f7ef4433d713eff77b8f8. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/CAV5M1500005.
      date published: 2026-07-16T20:12:32Z
    audio: Hey Sokoly
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 77.117
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.599
      additional property: Energy
        type: PropertyValue
        value: 0.881
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.278
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.103
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.7
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.266
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major