Sonora San Francisco
type: MusicGroup
genre: cumbia
genre: cumbia sonidera
popularity: 12
followers: 717
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x37091a775d90e2f89bf85b5200abd192e48f6023f914d3fc7a3ef62bacd99fbe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953730
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953730
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/949e4ad9-7d43-41a5-9af0-280ceb6f14b4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/949e4ad9-7d43-41a5-9af0-280ceb6f14b4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/949e4ad9-7d43-41a5-9af0-280ceb6f14b4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T02:47:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x37091a775d90e2f89bf85b5200abd192e48f6023f914d3fc7a3ef62bacd99fbe","name":"Sonora San Francisco","registered_at":"2026-06-14T20:04:22Z","symbol":"NIM0561738","token_address":"0x256c94944ab2c0627625338663fec4bcea23433a","type":"artist","uuid":"949e4ad9-7d43-41a5-9af0-280ceb6f14b4"}
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 0x37091a775d90e2f89bf85b5200abd192e48f6023f914d3fc7a3ef62bacd99fbe. Chain 2 (Bitcoin): anchored in block 953730 (2026-06-15T02:47:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/949e4ad9-7d43-41a5-9af0-280ceb6f14b4.json and https://artists.proofprofile.net/proofs/artist/949e4ad9-7d43-41a5-9af0-280ceb6f14b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T02:47:28Z
  text: {"copyright_id":"0x37091a775d90e2f89bf85b5200abd192e48f6023f914d3fc7a3ef62bacd99fbe","name":"Sonora San Francisco","registered_at":"2026-06-14T20:04:22Z","symbol":"NIM0561738","token_address":"0x256c94944ab2c0627625338663fec4bcea23433a","type":"artist","uuid":"949e4ad9-7d43-41a5-9af0-280ceb6f14b4"}
album: Tamboo Pa'Yo
  type: MusicAlbum
  date published: 1982
album: El Amor De Mi Vida
  type: MusicAlbum
  date published: 2015-07-10
album: El Amor De Mi Vida
  type: MusicAlbum
  date published: 2020-01-30
  track: Normas
    type: MusicRecording
    duration: PT3M35S
    duration ms: 215573
    explicit: false
    by artist: Sonora San Francisco
    in album: El Amor De Mi Vida
      type: MusicAlbum
      date published: 2020-01-30
    genre: cumbia
    genre: cumbia sonidera
    isrc code: MXD481807938
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T04:55:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x42f7a4ba77e8cd32e06601abe0631ed975b25d7a8dd2820a177f47002c5fdd96
    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/MXD481807938
    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 0x42f7a4ba77e8cd32e06601abe0631ed975b25d7a8dd2820a177f47002c5fdd96. 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/MXD481807938.
      date published: 2026-07-04T11:19:20Z
    audio: Normas
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 97.925
      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: 0.792
      additional property: Energy
        type: PropertyValue
        value: 0.646
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.419
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.311
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.92
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.873
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Que Siga El Tren
    type: MusicRecording
    duration: PT3M0S
    duration ms: 180120
    explicit: false
    by artist: Sonora San Francisco
    in album: El Amor De Mi Vida
      type: MusicAlbum
      date published: 2020-01-30
    genre: cumbia
    genre: cumbia sonidera
    isrc code: MXD481807939
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T09:19:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xadb61a35da3f856e6af1fa7b70ea7e53d5d6c7f5ab0dbf10309f6b8754ec5cbc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958711
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958711
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXD481807939
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T09:26:32Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb61a35da3f856e6af1fa7b70ea7e53d5d6c7f5ab0dbf10309f6b8754ec5cbc. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/MXD481807939.
      date published: 2026-07-19T09:26:32Z
    audio: Que Siga El Tren
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 93.959
      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: 0.835
      additional property: Energy
        type: PropertyValue
        value: 0.791
      additional property: Speechiness
        type: PropertyValue
        value: 0.059
      additional property: Acousticness
        type: PropertyValue
        value: 0.438
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Hechicera
  track: El Negro De Mi Tierra

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.267

Valence (Positivity)
type: PropertyValue
value: 0.932

Loudness (dB)
type: PropertyValue
value: -6.811

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Hechicera
type: MusicRecording
duration: PT3M54S
duration ms: 234653
explicit: false
by artist: Sonora San Francisco
in album: El Amor De Mi Vida
  type: MusicAlbum
  date published: 2020-01-30
genre: cumbia
genre: cumbia sonidera
isrc code: MXD481807942
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T12:19:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x93bd347305e21c663c169bd896fa5c03909870f9619cc76e38d8c3a5f361ab7a
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/MXD481807942
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T18:48:28Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bd347305e21c663c169bd896fa5c03909870f9619cc76e38d8c3a5f361ab7a. 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/MXD481807942.
  date published: 2026-07-05T18:48:28Z
audio: Hechicera
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 92.062
  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: 0.821
  additional property: Energy
    type: PropertyValue
    value: 0.597
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.142
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.776
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.677
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

El Negro De Mi Tierra
type: MusicRecording
duration: PT3M23S
duration ms: 203653
explicit: false
by artist: Sonora San Francisco
in album: El Amor De Mi Vida
  type: MusicAlbum
  date published: 2020-01-30
genre: cumbia
genre: cumbia sonidera
isrc code: MXD481807947
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T09:46:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x03b106887a1be49e602fda017e667a7bc96bced3fe6f98c051e854cb472b5d9a
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/MXD481807947
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 0x03b106887a1be49e602fda017e667a7bc96bced3fe6f98c051e854cb472b5d9a. 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/MXD481807947.
  date published: 2026-07-04T11:19:20Z
audio: El Negro De Mi Tierra
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 96.963
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.81
  additional property: Energy
    type: PropertyValue
    value: 0.782
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.537
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.049
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.964
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.452
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major