Hojda & Ulici
type: MusicGroup
popularity: 2
followers: 67
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbc0b1b0edc76a2ba0e220671b9bacb0cf49c79ffba02c3cb62f92336dc5e75ae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ac643d77-73cb-4ba6-b345-45106d039c2f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ac643d77-73cb-4ba6-b345-45106d039c2f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ac643d77-73cb-4ba6-b345-45106d039c2f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbc0b1b0edc76a2ba0e220671b9bacb0cf49c79ffba02c3cb62f92336dc5e75ae","name":"Hojda & Ulici","registered_at":"2026-06-20T10:18:10Z","symbol":"NIM1589454","token_address":"0xfa754bfea4bb9c705d1b1c05ddedf4e71d394b31","type":"artist","uuid":"ac643d77-73cb-4ba6-b345-45106d039c2f"}
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 0xbc0b1b0edc76a2ba0e220671b9bacb0cf49c79ffba02c3cb62f92336dc5e75ae. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac643d77-73cb-4ba6-b345-45106d039c2f.json and https://artists.proofprofile.net/proofs/artist/ac643d77-73cb-4ba6-b345-45106d039c2f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0xbc0b1b0edc76a2ba0e220671b9bacb0cf49c79ffba02c3cb62f92336dc5e75ae","name":"Hojda & Ulici","registered_at":"2026-06-20T10:18:10Z","symbol":"NIM1589454","token_address":"0xfa754bfea4bb9c705d1b1c05ddedf4e71d394b31","type":"artist","uuid":"ac643d77-73cb-4ba6-b345-45106d039c2f"}
album: Colinde
  type: MusicAlbum
  date published: 2020-12-24
  track: La Betleem
    type: MusicRecording
    duration: PT3M17S
    duration ms: 197273
    explicit: false
    by artist: Hojda & Ulici
    in album: Colinde
      type: MusicAlbum
      date published: 2020-12-24
    isrc code: CAHQJ2017559
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T00:15:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfb05cc554c136781fef5716c1fdf7330f172c5451e85d2e84c29c3c3e1acb280
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAHQJ2017559
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:26:17Z
    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 0xfb05cc554c136781fef5716c1fdf7330f172c5451e85d2e84c29c3c3e1acb280. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CAHQJ2017559.
      date published: 2026-07-06T01:26:17Z
    audio: La Betleem
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 78.673
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.205
      additional property: Energy
        type: PropertyValue
        value: 0.084
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.965
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.101
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.18
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.22
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor