Junior Toledo
type: MusicGroup
genre: salsa
genre: salsa romantica
popularity: 15
followers: 2236
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x04779e4fcaa09b1b723c4170120260441f371696d1624631fd517d69917e8c1c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953616
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953616
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/198824f4-f92d-496e-8f75-25bab4166011.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/198824f4-f92d-496e-8f75-25bab4166011.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/198824f4-f92d-496e-8f75-25bab4166011
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T08:58:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x04779e4fcaa09b1b723c4170120260441f371696d1624631fd517d69917e8c1c","name":"Junior Toledo","registered_at":"2026-06-14T07:04:36Z","symbol":"NIM0375772","token_address":"0x2c1c7edecf51cc8154738ed09c4d7d07965f3a43","type":"artist","uuid":"198824f4-f92d-496e-8f75-25bab4166011"}
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 0x04779e4fcaa09b1b723c4170120260441f371696d1624631fd517d69917e8c1c. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/198824f4-f92d-496e-8f75-25bab4166011.json and https://artists.proofprofile.net/proofs/artist/198824f4-f92d-496e-8f75-25bab4166011.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T08:58:35Z
  text: {"copyright_id":"0x04779e4fcaa09b1b723c4170120260441f371696d1624631fd517d69917e8c1c","name":"Junior Toledo","registered_at":"2026-06-14T07:04:36Z","symbol":"NIM0375772","token_address":"0x2c1c7edecf51cc8154738ed09c4d7d07965f3a43","type":"artist","uuid":"198824f4-f92d-496e-8f75-25bab4166011"}
album: Se Fugaron
  type: MusicAlbum
  date published: 1980-01-01
  track: Al Contrario
    type: MusicRecording
    duration: PT3M59S
    duration ms: 239920
    explicit: false
    by artist: Junior Toledo
    in album: Se Fugaron
      type: MusicAlbum
      date published: 1980-01-01
    genre: salsa
    genre: salsa romantica
    isrc code: QMDA62233669
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T20:10:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfbd613bad3fe55256b05583635f7a8ae79ceab6f0f17f07774b8cc3ebe28d4a6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958455
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958455
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62233669
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T21:28:36Z
    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 0xfbd613bad3fe55256b05583635f7a8ae79ceab6f0f17f07774b8cc3ebe28d4a6. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QMDA62233669.
      date published: 2026-07-17T21:28:36Z
    audio: Al Contrario
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 97.99
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.695
      additional property: Energy
        type: PropertyValue
        value: 0.561
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.721
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.072
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.952
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.463
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Junior Toledo & Guillo Rivera
  type: MusicAlbum
  date published: 1981-01-01
album: Cuando Vivas Conmigo
  type: MusicAlbum
  date published: 1982-01-01
  track: Niña y Señora
    type: MusicRecording
    duration: PT5M13S
    duration ms: 313626
    explicit: false
    by artist: Junior Toledo
    in album: Cuando Vivas Conmigo
      type: MusicAlbum
      date published: 1982-01-01
    genre: salsa
    genre: salsa romantica
    isrc code: QMFMF2129241
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T06:44:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x080802ae0a2ca98a3a17509f4a9f3fe1c5ff4492053f62b5da0eb9348b9267b3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959107
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959107
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF2129241
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T07:19:23Z
    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 0x080802ae0a2ca98a3a17509f4a9f3fe1c5ff4492053f62b5da0eb9348b9267b3. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QMFMF2129241.
      date published: 2026-07-22T07:19:23Z
    audio: Niña y Señora
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.68
      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: 0.531
      additional property: Energy
        type: PropertyValue
        value: 0.882
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.549
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
track: Al Contrario

Instrumentalness
type: PropertyValue
value: 0.002

Liveness
type: PropertyValue
value: 0.158

Valence (Positivity)
type: PropertyValue
value: 0.88

Loudness (dB)
type: PropertyValue
value: -2.477

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor

Al Contrario
type: MusicRecording
duration: PT3M54S
duration ms: 234133
explicit: false
by artist: Junior Toledo
by artist: Guillo Rivera
in album: Sabroso Guaguancó, Vol. 9
  type: MusicAlbum
  date published: 2016-04-15
isrc code: QMFME1531526
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T12:45:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8083ed853e11ef28cd57964397f32d4eb3f6b15de97488a47e0a60cc2a20ac6b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME1531526
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0x8083ed853e11ef28cd57964397f32d4eb3f6b15de97488a47e0a60cc2a20ac6b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMFME1531526.
  date published: 2026-06-13T13:32:09Z
audio: Al Contrario
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.597
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.648
  additional property: Energy
    type: PropertyValue
    value: 0.621
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.729
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.07
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.926
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.803
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor