Kantoris 04
type: MusicGroup
popularity: 12
followers: 776
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x70355dbb1ca78ebfeff08793b8698f73d09f84a8332ff3e1345cdf5d7bf2c523
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953741
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953741
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9c1395a8-9099-406c-864f-ec33b19094c8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9c1395a8-9099-406c-864f-ec33b19094c8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9c1395a8-9099-406c-864f-ec33b19094c8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:44:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x70355dbb1ca78ebfeff08793b8698f73d09f84a8332ff3e1345cdf5d7bf2c523","name":"Kantoris 04","registered_at":"2026-06-14T20:48:09Z","symbol":"NIM0572185","token_address":"0xd886be794a1358c56ad5b441345db84c57ab3d15","type":"artist","uuid":"9c1395a8-9099-406c-864f-ec33b19094c8"}
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 0x70355dbb1ca78ebfeff08793b8698f73d09f84a8332ff3e1345cdf5d7bf2c523. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c1395a8-9099-406c-864f-ec33b19094c8.json and https://artists.proofprofile.net/proofs/artist/9c1395a8-9099-406c-864f-ec33b19094c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:44:49Z
  text: {"copyright_id":"0x70355dbb1ca78ebfeff08793b8698f73d09f84a8332ff3e1345cdf5d7bf2c523","name":"Kantoris 04","registered_at":"2026-06-14T20:48:09Z","symbol":"NIM0572185","token_address":"0xd886be794a1358c56ad5b441345db84c57ab3d15","type":"artist","uuid":"9c1395a8-9099-406c-864f-ec33b19094c8"}
album: Labākās dziesmas
  type: MusicAlbum
  date published: 2000-05-11
album: Labākās dziesmas
  type: MusicAlbum
  date published: 2000-05-11
  track: O, Mana Mazā!
    type: MusicRecording
    duration: PT3M49S
    duration ms: 229108
    explicit: false
    by artist: Kantoris 04
    in album: Labākās dziesmas
      type: MusicAlbum
      date published: 2000-05-11
    isrc code: LVF131400633
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T00:14:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x859ab4ee54b5821ab91bff579091e044c1c650eb866bd8756f113bc214dfafec
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/LVF131400633
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 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 0x859ab4ee54b5821ab91bff579091e044c1c650eb866bd8756f113bc214dfafec. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/LVF131400633.
      date published: 2026-07-06T01:25:57Z
    audio: O, Mana Mazā!
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.895
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.828
      additional property: Energy
        type: PropertyValue
        value: 0.541
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.038
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.077
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.963
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.925
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Labākās dziesmas 2
  type: MusicAlbum
  date published: 2000-09-14
album: Vēl vienu reiz
  type: MusicAlbum
  date published: 2004
album: Ša-la-la-la
  type: MusicAlbum
  date published: 2005
album: Ir jāņem vēlvienreiz!
  type: MusicAlbum
  date published: 2006
album: Ir jāņem vēlvienreiz!
  type: MusicAlbum
  date published: 2006-10-01
album: Liedagā
  type: MusicAlbum
  date published: 2008
album: Viena zvaigzne
  type: MusicAlbum
  date published: 2008
album: Liedagā
  type: MusicAlbum
  date published: 2008
album: Liedagā
  type: MusicAlbum
  date published: 2008
track: Jāņu nakts
  type: MusicRecording
  duration: PT3M10S
  duration ms: 190275
  explicit: false
  by artist: Kantoris 04
  in album: Šlāgerizlase Jāņu nakts
    type: MusicAlbum
    date published: 2025-05-08
  isrc code: LVD011400327
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-28T06:21:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc4b6109fb8acf9b2b9bfa413a68f3f2ac03bb8ba5f2bd5990b737ea1c200040a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956375
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956375
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/LVD011400327
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T16:51:38Z
  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 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 0xc4b6109fb8acf9b2b9bfa413a68f3f2ac03bb8ba5f2bd5990b737ea1c200040a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/LVD011400327.
    date published: 2026-07-02T16:51:38Z
  audio: Jāņu nakts
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 187.292
    additional property: Musical Key
    additional property: Mode (Major/Minor)
    additional property: Time Signature
    additional property: Danceability
    additional property: Energy
    additional property: Speechiness
    additional property: Acousticness
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Musical Key
type: PropertyValue
value: 5

Mode (Major/Minor)
type: PropertyValue
value: 1

Time Signature
type: PropertyValue
value: 5

Danceability
type: PropertyValue
value: 0.421

Energy
type: PropertyValue
value: 0.783

Speechiness
type: PropertyValue
value: 0.059

Acousticness
type: PropertyValue
value: 0.014

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.4

Valence (Positivity)
type: PropertyValue
value: 0.687

Loudness (dB)
type: PropertyValue
value: -9.694

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major