Nando CK
type: MusicGroup
popularity: 3
followers: 26
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xebd327dd85b457fa2976f2628b4635fb4411fba7829431754abb16f0f833adf6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ca8daa0c-db99-4334-bbe8-33c45d6e3496.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ca8daa0c-db99-4334-bbe8-33c45d6e3496.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ca8daa0c-db99-4334-bbe8-33c45d6e3496
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xebd327dd85b457fa2976f2628b4635fb4411fba7829431754abb16f0f833adf6","name":"Nando CK","registered_at":"2026-06-20T22:59:52Z","symbol":"NIM1738210","token_address":"0x686c12fd4a382da4c375168235e556b6aa673824","type":"artist","uuid":"ca8daa0c-db99-4334-bbe8-33c45d6e3496"}
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 0xebd327dd85b457fa2976f2628b4635fb4411fba7829431754abb16f0f833adf6. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca8daa0c-db99-4334-bbe8-33c45d6e3496.json and https://artists.proofprofile.net/proofs/artist/ca8daa0c-db99-4334-bbe8-33c45d6e3496.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0xebd327dd85b457fa2976f2628b4635fb4411fba7829431754abb16f0f833adf6","name":"Nando CK","registered_at":"2026-06-20T22:59:52Z","symbol":"NIM1738210","token_address":"0x686c12fd4a382da4c375168235e556b6aa673824","type":"artist","uuid":"ca8daa0c-db99-4334-bbe8-33c45d6e3496"}
album: Turro Rkt
  type: MusicAlbum
  date published: 2023-04-22
album: Man T
  type: MusicAlbum
  date published: 2023-08-31
album: Calle Cruz D
  type: MusicAlbum
  date published: 2023-12-18
  track: Calle Cruz D
    type: MusicRecording
    duration: PT2M57S
    duration ms: 177005
    explicit: false
    by artist: Nando CK
    in album: Calle Cruz D
      type: MusicAlbum
      date published: 2023-12-18
    isrc code: QZW9L2341649
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T15:18:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x68a80b64868f5b8fb05c5380e57e22e64938a6efc1289e91dd45bef49e5e0eec
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2341649
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0x68a80b64868f5b8fb05c5380e57e22e64938a6efc1289e91dd45bef49e5e0eec. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZW9L2341649.
      date published: 2026-07-05T18:48:28Z
    audio: Calle Cruz D
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.011
      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: 0.827
      additional property: Energy
        type: PropertyValue
        value: 0.365
      additional property: Speechiness
        type: PropertyValue
        value: 0.101
      additional property: Acousticness
        type: PropertyValue
        value: 0.304
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.29
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.73
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.708
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Turro (Remix)
  type: MusicAlbum
  date published: 2024-03-05
album: Dígitos
  type: MusicAlbum
  date published: 2025-03-18
  track: Dígitos
    type: MusicRecording
    duration: PT2M54S
    duration ms: 174589
    explicit: false
    by artist: Nando CK
    in album: Dígitos
      type: MusicAlbum
      date published: 2025-03-18
    isrc code: COAF42501145
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T21:29:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4d637ed835da6ffb27e968d6a4575397da12d719ee4d4550bb7883e6ba1f8566
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COAF42501145
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0x4d637ed835da6ffb27e968d6a4575397da12d719ee4d4550bb7883e6ba1f8566. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/COAF42501145.
      date published: 2026-07-05T01:12:41Z
    audio: Dígitos
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 80.987
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.774
      additional property: Energy
        type: PropertyValue
        value: 0.822
      additional property: Speechiness
        type: PropertyValue
        value: 0.181
      additional property: Acousticness
        type: PropertyValue
        value: 0.464
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.343

Valence (Positivity)
type: PropertyValue
value: 0.835

Loudness (dB)
type: PropertyValue
value: -7.506

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Major