La Maldita Costumbre
type: MusicGroup
genre: ska
genre: ska punk
popularity: 7
followers: 2927
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06441832e0369775a2d5a16247c86243913de0abc8a8f50d56fa8bd5796da2c4. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66003122-1baa-492b-83d2-7015dcf676ed.json and https://artists.proofprofile.net/proofs/artist/66003122-1baa-492b-83d2-7015dcf676ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x06441832e0369775a2d5a16247c86243913de0abc8a8f50d56fa8bd5796da2c4","name":"La Maldita Costumbre","registered_at":"2026-06-17T01:12:22Z","symbol":"NIM1234320","token_address":"0xb7cb582c8c34a26349cba17f9dd22878739cdbe4","type":"artist","uuid":"66003122-1baa-492b-83d2-7015dcf676ed"}
album: Del Este Aunque Nos Cueste... El Sonidero Central
  type: MusicAlbum
  date published: 2014-01-06
  track: La Que Cura el Corazón
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217640
    explicit: false
    by artist: La Maldita Costumbre
    in album: Del Este Aunque Nos Cueste... El Sonidero Central
      type: MusicAlbum
      date published: 2014-01-06
    genre: ska
    genre: ska punk
    isrc code: FR2X41752574
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      type: PropertyValue
      value: registered
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      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:12:23Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120091afbf689e806d4d83c5f3d08e70df8d701e45acc81c67f0739bc0198481. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR2X41752574.
      date published: 2026-07-17T19:12:23Z
    audio: La Que Cura el Corazón
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 179.615
      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: 0.351
      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
        type: PropertyValue
        value: 0.133
      additional property: Acousticness
        type: PropertyValue
        value: 0.005
      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
        type: PropertyValue
        value: 0.189
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.797
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.712
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Calzón
  type: MusicAlbum
  date published: 2015-04-06
  track: Como Te Quiero
    type: MusicRecording
    duration: PT3M9S
    duration ms: 189761
    explicit: false
    by artist: La Maldita Costumbre
    in album: Calzón
      type: MusicAlbum
      date published: 2015-04-06
    genre: ska
    genre: ska punk
    isrc code: FR59R1566074
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:59:37Z
    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 0x23e95a1b5783f59c4816c6141487c7b38a205b9ad6c7b54548c69c72e40ffc2f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FR59R1566074.
      date published: 2026-07-05T10:59:37Z
    audio: Como Te Quiero
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.193
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        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: 0.64
      additional property: Energy
        type: PropertyValue
        value: 0.71
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.057
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Caras Vemos
album: Estoy Aquí
album: 2017
album: El Hospital del Terror
album: Guárdame un Sueño en Tu Almohada

Liveness
type: PropertyValue
value: 0.246

Valence (Positivity)
type: PropertyValue
value: 0.77

Loudness (dB)
type: PropertyValue
value: -6.39

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major

Caras Vemos
type: MusicAlbum
date published: 2016-08-25

Estoy Aquí
type: MusicAlbum
date published: 2017-04-14

2017
type: MusicAlbum
date published: 2017-08-25

El Hospital del Terror
type: MusicAlbum
date published: 2018-01-05

Guárdame un Sueño en Tu Almohada
type: MusicAlbum
date published: 2018-04-13