Cala
type: MusicGroup
genre: rock en español
genre: symphonic rock
popularity: 3
followers: 11
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b592acff-5c2f-4349-9b0d-920143719da7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b592acff-5c2f-4349-9b0d-920143719da7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b592acff-5c2f-4349-9b0d-920143719da7
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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 0xa464442ce966b27ed3ec319e1f627e00c5505a0b0d2177748fffb6b6cf444753. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b592acff-5c2f-4349-9b0d-920143719da7.json and https://artists.proofprofile.net/proofs/artist/b592acff-5c2f-4349-9b0d-920143719da7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
track: Nos Siguen Pegando Abajo - Rock en Tu Idioma, Eléctrico

Nos Siguen Pegando Abajo - Rock en Tu Idioma, Eléctrico
type: MusicRecording
duration: PT2M44S
duration ms: 164099
explicit: false
by artist: Sabo Romo
by artist: Leoncio Lara Bon
by artist: Humberto Calderon
by artist: Sergio Santacruz
by artist: Marciano Cantero
by artist: Cala
by artist: Piro
by artist: Leonardo de Lozanne
by artist: Ugo Rodríguez
by artist: María Barracuda
by artist: Andrea Echeverri
in album: Rock En Tu Idioma, Eléctrico
  type: MusicAlbum
  date published: 2020-09-22
genre: rock-en-espanol
genre: mexican-rock
genre: symphonic-rock
isrc code: MXF012000216
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF012000216
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b460046d157be8c714b1ff752fbacc712540b5972a687704e94bb625edfc79. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MXF012000216.
  date published: 2026-07-02T03:55:08Z
audio: Nos Siguen Pegando Abajo - Rock en Tu Idioma, Eléctrico
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 155.434
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
    value: 0.261
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.636
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.313
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major