Marzo Uno
type: MusicGroup
genre: grupera
popularity: 21
followers: 903
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2d77b007ab9a8a749b80a0204a23094ba3922ca5af15e8dc42893e94008f5081
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/77cf0f01-bf63-4a37-91a3-48717cb5d535.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/77cf0f01-bf63-4a37-91a3-48717cb5d535.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/77cf0f01-bf63-4a37-91a3-48717cb5d535
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2d77b007ab9a8a749b80a0204a23094ba3922ca5af15e8dc42893e94008f5081","name":"Marzo Uno","registered_at":"2026-06-12T01:17:17Z","symbol":"NIM0154140","token_address":"0x932e20da92fdafda9ee908d124630221f5b0800a","type":"artist","uuid":"77cf0f01-bf63-4a37-91a3-48717cb5d535"}
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 0x2d77b007ab9a8a749b80a0204a23094ba3922ca5af15e8dc42893e94008f5081. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77cf0f01-bf63-4a37-91a3-48717cb5d535.json and https://artists.proofprofile.net/proofs/artist/77cf0f01-bf63-4a37-91a3-48717cb5d535.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x2d77b007ab9a8a749b80a0204a23094ba3922ca5af15e8dc42893e94008f5081","name":"Marzo Uno","registered_at":"2026-06-12T01:17:17Z","symbol":"NIM0154140","token_address":"0x932e20da92fdafda9ee908d124630221f5b0800a","type":"artist","uuid":"77cf0f01-bf63-4a37-91a3-48717cb5d535"}
album: Te Dolerá el Haberme Dejado
  type: MusicAlbum
  date published: 1996-10-20
album: Suerte He Tenido
  type: MusicAlbum
  date published: 1998-11-10
  track: Canción de Paz
    type: MusicRecording
    duration: PT2M48S
    duration ms: 168493
    explicit: false
    by artist: Marzo Uno
    in album: Suerte He Tenido
      type: MusicAlbum
      date published: 1998-11-10
    genre: grupera
    isrc code: QMDA62147654
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T19:04:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9a23c774143e27e211a9d747431ca84ae55ebc467619b030e84bb34339739d3a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958771
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958771
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62147654
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T19:27:18Z
    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 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 0x9a23c774143e27e211a9d747431ca84ae55ebc467619b030e84bb34339739d3a. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62147654 — a six-check JSON result.
      date published: 2026-07-19T19:27:18Z
    audio: Canción de Paz
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.046
      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: 0.502
      additional property: Energy
        type: PropertyValue
        value: 0.496
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.534
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.117
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.914
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.062
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Pequeña
    type: MusicRecording
    duration: PT2M59S
    duration ms: 179560
    explicit: false
    by artist: Marzo Uno
    in album: Suerte He Tenido
      type: MusicAlbum
      date published: 1998-11-10
    genre: grupera
    isrc code: QMDA62147658
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T04:10:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x28db1375b471ff0debbde4b5c04f07c4fb08e9dbd54238e903dfc2287c045751
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958660
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958660
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62147658
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T04:21:53Z
    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 0x28db1375b471ff0debbde4b5c04f07c4fb08e9dbd54238e903dfc2287c045751. Chain 2 (Bitcoin): anchored in block 958660 (2026-07-19T04:21:53Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62147658 — a six-check JSON result.
      date published: 2026-07-19T04:21:53Z
    audio: Pequeña
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 102.193
      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: 0.539
      additional property: Energy
        type: PropertyValue
        value: 0.296
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.585
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.146
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Rancheras Que Llegan
album: De Romance
album: Queremos Seguir

Valence (Positivity)
type: PropertyValue
value: 0.48

Loudness (dB)
type: PropertyValue
value: -14.82

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Rancheras Que Llegan
type: MusicAlbum
date published: 2022-02-17

De Romance
type: MusicAlbum
date published: 2023-02-27

Queremos Seguir
type: MusicAlbum
date published: 2023-12-15