Sofia Blond
type: MusicGroup
genre: kuduro
popularity: 7
followers: 100
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x97da6e47708cdff2159612dbf87155429cc13f9c2c80a8e9f659e901bc0be45b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954019
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954019
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37aa1d46-782a-404a-9185-901d48c13ddd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/37aa1d46-782a-404a-9185-901d48c13ddd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/37aa1d46-782a-404a-9185-901d48c13ddd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:44:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x97da6e47708cdff2159612dbf87155429cc13f9c2c80a8e9f659e901bc0be45b","name":"Sofia Blond","registered_at":"2026-06-16T08:55:24Z","symbol":"NIM1001244","token_address":"0x095464b29544f8d6c93233d6d7dfe62b2f461182","type":"artist","uuid":"37aa1d46-782a-404a-9185-901d48c13ddd"}
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 0x97da6e47708cdff2159612dbf87155429cc13f9c2c80a8e9f659e901bc0be45b. Chain 2 (Bitcoin): anchored in block 954019 (2026-06-16T23:44:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37aa1d46-782a-404a-9185-901d48c13ddd.json and https://artists.proofprofile.net/proofs/artist/37aa1d46-782a-404a-9185-901d48c13ddd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T23:44:13Z
  text: {"copyright_id":"0x97da6e47708cdff2159612dbf87155429cc13f9c2c80a8e9f659e901bc0be45b","name":"Sofia Blond","registered_at":"2026-06-16T08:55:24Z","symbol":"NIM1001244","token_address":"0x095464b29544f8d6c93233d6d7dfe62b2f461182","type":"artist","uuid":"37aa1d46-782a-404a-9185-901d48c13ddd"}
album: Verano Frío
  type: MusicAlbum
  date published: 2022-11-18
  track: Verano Frío
    type: MusicRecording
    duration: PT2M53S
    duration ms: 173090
    explicit: false
    by artist: Sofia Blond
    in album: Verano Frío
      type: MusicAlbum
      date published: 2022-11-18
    genre: kuduro
    isrc code: QZTAX2207625
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T10:32:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x96a7df7960b428817744ec37d861924249262f00b6337ad54e709931fceb5233
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959123
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959123
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAX2207625
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T11:35:32Z
    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 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 0x96a7df7960b428817744ec37d861924249262f00b6337ad54e709931fceb5233. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZTAX2207625.
      date published: 2026-07-22T11:35:32Z
    audio: Verano Frío
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 164.887
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.391
      additional property: Energy
        type: PropertyValue
        value: 0.352
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.876
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.147
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.187
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.891
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Optimista
  type: MusicAlbum
  date published: 2023-11-28
album: Las Nubes Lloran
  type: MusicAlbum
  date published: 2023-12-12
album: Echo de Menos los Problemas
  type: MusicAlbum
  date published: 2024-10-25
album: Barco
  type: MusicAlbum
  date published: 2025-01-24
  track: Barco
    type: MusicRecording
    duration: PT3M19S
    duration ms: 199957
    explicit: false
    by artist: Sofia Blond
    in album: Barco
      type: MusicAlbum
      date published: 2025-01-24
    genre: kuduro
    isrc code: QT3F32499821
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T15:11:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe79e22f2af5f11f651369af8676d8edafb62ff53b09fdb76a24735a624306425
    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/QT3F32499821
    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 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 0xe79e22f2af5f11f651369af8676d8edafb62ff53b09fdb76a24735a624306425. 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/QT3F32499821.
      date published: 2026-07-05T18:48:28Z
    audio: Barco
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 88.408
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.467
      additional property: Energy
        type: PropertyValue
        value: 0.455
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      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

Acousticness
type: PropertyValue
value: 0.203

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.105

Valence (Positivity)
type: PropertyValue
value: 0.25

Loudness (dB)
type: PropertyValue
value: -8.074

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Major