La Matuza
type: MusicGroup
popularity: 21
followers: 152
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3e32a1f49d0fbc86980f4d1219b13ddf50d6fd367de3e43e52d60b47080031ec
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a552e78f-41df-47cd-abcb-bdd1e9d2895f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a552e78f-41df-47cd-abcb-bdd1e9d2895f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a552e78f-41df-47cd-abcb-bdd1e9d2895f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3e32a1f49d0fbc86980f4d1219b13ddf50d6fd367de3e43e52d60b47080031ec","name":"La Matuza","registered_at":"2026-06-12T06:23:52Z","symbol":"NIM0213351","token_address":"0xfabef696daa83749ce0a058ef1e2590ce1af6916","type":"artist","uuid":"a552e78f-41df-47cd-abcb-bdd1e9d2895f"}
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 0x3e32a1f49d0fbc86980f4d1219b13ddf50d6fd367de3e43e52d60b47080031ec. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a552e78f-41df-47cd-abcb-bdd1e9d2895f.json and https://artists.proofprofile.net/proofs/artist/a552e78f-41df-47cd-abcb-bdd1e9d2895f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x3e32a1f49d0fbc86980f4d1219b13ddf50d6fd367de3e43e52d60b47080031ec","name":"La Matuza","registered_at":"2026-06-12T06:23:52Z","symbol":"NIM0213351","token_address":"0xfabef696daa83749ce0a058ef1e2590ce1af6916","type":"artist","uuid":"a552e78f-41df-47cd-abcb-bdd1e9d2895f"}
album: pla pla
  type: MusicAlbum
  date published: 2024-08-04
  track: pla pla
    type: MusicRecording
    duration: PT3M4S
    duration ms: 184607
    explicit: true
    by artist: La Matuza
    in album: pla pla
      type: MusicAlbum
      date published: 2024-08-04
    isrc code: QZDQH2423545
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T22:47:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0d09441ca300f24cd7299bd910011abccee5062db241d6dcc8831fb4635ad8c3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958340
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958340
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2423545
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T00:53:26Z
    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 0x0d09441ca300f24cd7299bd910011abccee5062db241d6dcc8831fb4635ad8c3. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZDQH2423545.
      date published: 2026-07-17T00:53:26Z
    audio: pla pla
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 112.279
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.647
      additional property: Energy
        type: PropertyValue
        value: 0.76
      additional property: Speechiness
        type: PropertyValue
        value: 0.104
      additional property: Acousticness
        type: PropertyValue
        value: 0.204
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.272
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.47
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.357
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: mami resa por mi
  type: MusicAlbum
  date published: 2024-08-04
  track: mami resa por mi
    type: MusicRecording
    duration: PT3M19S
    duration ms: 199105
    explicit: true
    by artist: La Matuza
    in album: mami resa por mi
      type: MusicAlbum
      date published: 2024-08-04
    isrc code: QZDQH2423547
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T23:16:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0f149eca0aceae92e3773e7558f6a7e8113c54533399a131287d9254e1483765
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958342
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958342
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2423547
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T02:21:18Z
    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 0x0f149eca0aceae92e3773e7558f6a7e8113c54533399a131287d9254e1483765. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:21:18Z), 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/QZDQH2423547.
      date published: 2026-07-17T02:21:18Z
    audio: mami resa por mi
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.143
      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: 0.781
      additional property: Energy
        type: PropertyValue
        value: 0.617
      additional property: Speechiness
        type: PropertyValue
        value: 0.187
      additional property: Acousticness
        type: PropertyValue
        value: 0.202
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.088
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.709
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Por mi patria
album: Y Qloq
album: Me Gusta Fumar
album: duro de verdad
album: si calibro
album: la vecina
album: las menores
album: el chaplo
album: el rapon
album: ven aca
album: mas que yo
album: tusamaria

Loudness (dB)
type: PropertyValue
value: -6.315

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Por mi patria
type: MusicAlbum
date published: 2025-01-17
track: Por mi patria
  type: MusicRecording
  duration: PT1M44S
  duration ms: 104933
  explicit: true
  by artist: La Matuza
  in album: Por mi patria
    type: MusicAlbum
    date published: 2025-01-17
  isrc code: QZDQH2443955
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T12:27:14+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc0ab241a7499462a18c4d339e16171f7615a5cb229a285b4ea05d329c856b0a2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958286
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958286
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2443955
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T12:43:37Z
  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 0xc0ab241a7499462a18c4d339e16171f7615a5cb229a285b4ea05d329c856b0a2. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZDQH2443955.
    date published: 2026-07-16T12:43:37Z
  audio: Por mi patria
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 116.978
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 1
    additional property: Danceability
      type: PropertyValue
      value: 0.577
    additional property: Energy
      type: PropertyValue
      value: 0.791
    additional property: Speechiness
      type: PropertyValue
      value: 0.402
    additional property: Acousticness
      type: PropertyValue
      value: 0.691
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.164
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.808
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.449
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major

Y Qloq
type: MusicAlbum
date published: 2025-01-20
track: Y Qloq
  type: MusicRecording
  duration: PT1M53S
  duration ms: 113946
  explicit: true
  by artist: La Matuza
  in album: Y Qloq
    type: MusicAlbum
    date published: 2025-01-20
  isrc code: QZDQH2444206
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T13:24:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4cb35a034d494848516042f5f2c14e8e67be127d9b8b9592c034c69321c6299e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958300
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958300
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2444206
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T16:14:30Z
  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 0x4cb35a034d494848516042f5f2c14e8e67be127d9b8b9592c034c69321c6299e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZDQH2444206.
    date published: 2026-07-16T16:14:30Z
  audio: Y Qloq
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 75.981
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.766
    additional property: Energy
      type: PropertyValue
      value: 0.56
    additional property: Speechiness
      type: PropertyValue
      value: 0.227
    additional property: Acousticness
      type: PropertyValue
      value: 0.199
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.08
    additional property: Liveness
      type: PropertyValue
      value: 0.058
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.814
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.419
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

Me Gusta Fumar
type: MusicAlbum
date published: 2025-01-20
track: Me Gusta Fumar
  type: MusicRecording
  duration: PT2M16S
  duration ms: 136855
  explicit: true
  by artist: La Matuza
  in album: Me Gusta Fumar
    type: MusicAlbum
    date published: 2025-01-20
  isrc code: QZDQH2444203
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T05:02:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8004ff583abeb69c488b1b9ef0b14b9b1f8221c8e5de07307c0f1f4b7a8f6741
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958371
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958371
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2444203
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T08:05:04Z
  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 0x8004ff583abeb69c488b1b9ef0b14b9b1f8221c8e5de07307c0f1f4b7a8f6741. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T08:05:04Z), 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/QZDQH2444203.
    date published: 2026-07-17T08:05:04Z
  audio: Me Gusta Fumar
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 91.575
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.637
    additional property: Energy
      type: PropertyValue
      value: 0.524
    additional property: Speechiness
      type: PropertyValue
      value: 0.391
    additional property: Acousticness
      type: PropertyValue
      value: 0.144
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.184
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.339
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.041
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

duro de verdad
type: MusicAlbum
date published: 2025-02-24
track: duro de verdad
  type: MusicRecording
  duration: PT2M27S
  duration ms: 147043
  explicit: false
  by artist: La Matuza
  in album: duro de verdad
    type: MusicAlbum
    date published: 2025-02-24
  isrc code: QZDQH2501988
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T23:24:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1764f875ac622711a1fdf54db49816ca59e5dd9df861dfa2406c543b583093e8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958341
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958341
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2501988
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T02:26:24Z
  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 0x1764f875ac622711a1fdf54db49816ca59e5dd9df861dfa2406c543b583093e8. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:26:24Z), 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/QZDQH2501988.
    date published: 2026-07-17T02:26:24Z
  audio: duro de verdad
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 157.194
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.617
    additional property: Energy
      type: PropertyValue
      value: 0.38
    additional property: Speechiness
      type: PropertyValue
      value: 0.402
    additional property: Acousticness
      type: PropertyValue
      value: 0.256
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.861
    additional property: Liveness
      type: PropertyValue
      value: 0.07
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.388
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.641
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

si calibro
type: MusicAlbum
date published: 2025-02-24
track: si calibro
  type: MusicRecording
  duration: PT2M41S
  duration ms: 161018
  explicit: true
  by artist: La Matuza
  in album: si calibro
    type: MusicAlbum
    date published: 2025-02-24
  isrc code: QZDQH2501985
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T02:36:55+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe2b7724c0e70ae6a0a746fcf6dbbf26218717dd807e88788cb3f81f527ebd8dc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956639
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956639
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2501985
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T11:19:20Z
  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 0xe2b7724c0e70ae6a0a746fcf6dbbf26218717dd807e88788cb3f81f527ebd8dc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZDQH2501985.
    date published: 2026-07-04T11:19:20Z
  audio: si calibro
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 117.995
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.806
    additional property: Energy
      type: PropertyValue
      value: 0.277
    additional property: Speechiness
      type: PropertyValue
      value: 0.095
    additional property: Acousticness
      type: PropertyValue
      value: 0.002
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.09
    additional property: Liveness
      type: PropertyValue
      value: 0.73
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.943
    additional property: Loudness (dB)
      type: PropertyValue
      value: -33.178
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major

la vecina
type: MusicAlbum
date published: 2025-02-24
track: la vecina
  type: MusicRecording
  duration: PT2M34S
  duration ms: 154122
  explicit: false
  by artist: La Matuza
  in album: la vecina
    type: MusicAlbum
    date published: 2025-02-24
  isrc code: QZDQH2501977
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T17:58:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcd54bd0bd843dd04d82ed9d11027f930b0a8438bbb47efa79f38d2210400cead
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956551
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956551
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2501977
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T21:18:05Z
  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 0xcd54bd0bd843dd04d82ed9d11027f930b0a8438bbb47efa79f38d2210400cead. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZDQH2501977.
    date published: 2026-07-03T21:18:05Z
  audio: la vecina
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 118.097
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.911
    additional property: Energy
      type: PropertyValue
      value: 0.234
    additional property: Speechiness
      type: PropertyValue
      value: 0.185
    additional property: Acousticness
      type: PropertyValue
      value: 0.032
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.046
    additional property: Liveness
      type: PropertyValue
      value: 0.652
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.316
    additional property: Loudness (dB)
      type: PropertyValue
      value: -28.188
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

las menores
type: MusicAlbum
date published: 2025-02-24
track: las menores
  type: MusicRecording
  duration: PT2M30S
  duration ms: 150517
  explicit: true
  by artist: La Matuza
  in album: las menores
    type: MusicAlbum
    date published: 2025-02-24
  isrc code: QZDQH2501983
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T13:33:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4ce2aedafb987248ffd01c87ca72acf856c7603fdc7f487dd5528c074e944df9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958303
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958303
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2501983
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T16:39:24Z
  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 0x4ce2aedafb987248ffd01c87ca72acf856c7603fdc7f487dd5528c074e944df9. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZDQH2501983.
    date published: 2026-07-16T16:39:24Z
  audio: las menores
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 118.094
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.826
    additional property: Energy
      type: PropertyValue
      value: 0.168
    additional property: Speechiness
      type: PropertyValue
      value: 0.176
    additional property: Acousticness
      type: PropertyValue
      value: 0.021
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.341
    additional property: Liveness
      type: PropertyValue
      value: 0.082
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.499
    additional property: Loudness (dB)
      type: PropertyValue
      value: -26.445
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

el chaplo
type: MusicAlbum
date published: 2025-02-24
track: el chaplo
  type: MusicRecording
  duration: PT2M26S
  duration ms: 146494
  explicit: true
  by artist: La Matuza
  in album: el chaplo
    type: MusicAlbum
    date published: 2025-02-24
  isrc code: QZDQH2501987
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T13:26:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdd7d36bed9e6496a060fada960057d962214807f66006851bce4402ee7007afb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956545
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956545
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2501987
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T19:59:51Z
  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 0xdd7d36bed9e6496a060fada960057d962214807f66006851bce4402ee7007afb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZDQH2501987.
    date published: 2026-07-03T19:59:51Z
  audio: el chaplo
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 79.883
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.547
    additional property: Energy
      type: PropertyValue
      value: 0.138
    additional property: Speechiness
      type: PropertyValue
      value: 0.208
    additional property: Acousticness
      type: PropertyValue
      value: 0.002
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.498
    additional property: Liveness
      type: PropertyValue
      value: 0.093
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.445
    additional property: Loudness (dB)
      type: PropertyValue
      value: -26.804
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

el rapon
type: MusicAlbum
date published: 2025-02-24
track: el rapon
  type: MusicRecording
  duration: PT2M31S
  duration ms: 151588
  explicit: false
  by artist: La Matuza
  in album: el rapon
    type: MusicAlbum
    date published: 2025-02-24
  isrc code: QZDQH2501976
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T08:14:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4746ad58a0feb5538fdb794bc424a8e9dbeb373513300076c54d18d5c6236065
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958268
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958268
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2501976
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T11:08:55Z
  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 0x4746ad58a0feb5538fdb794bc424a8e9dbeb373513300076c54d18d5c6236065. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:08:55Z), 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/QZDQH2501976.
    date published: 2026-07-16T11:08:55Z
  audio: el rapon
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 117.931
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.819
    additional property: Energy
      type: PropertyValue
      value: 0.113
    additional property: Speechiness
      type: PropertyValue
      value: 0.634
    additional property: Acousticness
      type: PropertyValue
      value: 0.016
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.542
    additional property: Liveness
      type: PropertyValue
      value: 0.101
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.545
    additional property: Loudness (dB)
      type: PropertyValue
      value: -26.284
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Minor

ven aca
type: MusicAlbum
date published: 2025-02-24
track: ven aca
  type: MusicRecording
  duration: PT2M26S
  duration ms: 146494
  explicit: true
  by artist: La Matuza
  in album: ven aca
    type: MusicAlbum
    date published: 2025-02-24
  isrc code: QZDQH2501989
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T07:18:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdfc3c4e3213f8ad226f67ed7a92598583957fb9cd638bca349b525abc48dd1d5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956484
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956484
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2501989
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T10:47:44Z
  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 0xdfc3c4e3213f8ad226f67ed7a92598583957fb9cd638bca349b525abc48dd1d5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZDQH2501989.
    date published: 2026-07-03T10:47:44Z
  audio: ven aca
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 80.883
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.514
    additional property: Energy
      type: PropertyValue
      value: 0.268
    additional property: Speechiness
      type: PropertyValue
      value: 0.326
    additional property: Acousticness
      type: PropertyValue
      value: 0.001
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.132
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.383
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.937
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

mas que yo
type: MusicAlbum
date published: 2025-02-24
track: mas que yo
  type: MusicRecording
  duration: PT2M30S
  duration ms: 150569
  explicit: false
  by artist: La Matuza
  in album: mas que yo
    type: MusicAlbum
    date published: 2025-02-24
  isrc code: QZDQH2501984
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T17:59:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x056f78a5d869c151c361efece3f7c55d1d2203fb5d4d0b84fa6ee42c8fb814f1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956560
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956560
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2501984
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T23:28:02Z
  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 0x056f78a5d869c151c361efece3f7c55d1d2203fb5d4d0b84fa6ee42c8fb814f1. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZDQH2501984.
    date published: 2026-07-03T23:28:02Z
  audio: mas que yo
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 118.013
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.891
    additional property: Energy
      type: PropertyValue
      value: 0.379
    additional property: Speechiness
      type: PropertyValue
      value: 0.339
    additional property: Acousticness
      type: PropertyValue
      value: 0.01
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.084
    additional property: Liveness
      type: PropertyValue
      value: 0.16
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.824
    additional property: Loudness (dB)
      type: PropertyValue
      value: -26.437
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

tusamaria
type: MusicAlbum
date published: 2025-02-24
track: tusamaria
  type: MusicRecording
  duration: PT2M26S
  duration ms: 146494
  explicit: false
  by artist: La Matuza
  in album: tusamaria
    type: MusicAlbum
    date published: 2025-02-24
  isrc code: QZDQH2501986
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T18:00:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf0cc7b73ba4986d1455bc3892f303c06b079b98217a441c42f4d3679365bd0a4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956551
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956551
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH2501986
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T21:18:05Z
  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 0xf0cc7b73ba4986d1455bc3892f303c06b079b98217a441c42f4d3679365bd0a4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZDQH2501986.
    date published: 2026-07-03T21:18:05Z
  audio: tusamaria
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 118.03
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.835
    additional property: Energy
      type: PropertyValue
      value: 0.213
    additional property: Speechiness
      type: PropertyValue
      value: 0.281
    additional property: Acousticness
      type: PropertyValue
      value: 0.001
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.079
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.512
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.32
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major