Fer Mendoza y Los de Negro
type: MusicGroup
popularity: 3
followers: 324
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
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additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d457904a-96af-4059-b97c-a7c88cdd7904.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d457904a-96af-4059-b97c-a7c88cdd7904
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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 0x4e8bf31264aaae3b1c1945547aa407198f2fd59e502513f39eed17b8d1bf2936. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d457904a-96af-4059-b97c-a7c88cdd7904.json and https://artists.proofprofile.net/proofs/artist/d457904a-96af-4059-b97c-a7c88cdd7904.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0x4e8bf31264aaae3b1c1945547aa407198f2fd59e502513f39eed17b8d1bf2936","name":"Fer Mendoza y Los de Negro","registered_at":"2026-06-21T02:15:05Z","symbol":"NIM1787739","token_address":"0xdbf1172df14a8a171502badc573c5cc7de85fe6b","type":"artist","uuid":"d457904a-96af-4059-b97c-a7c88cdd7904"}
album: En Vivo
  type: MusicAlbum
  date published: 2019-05-31
album: Yo Estaba Dispuesto
  type: MusicAlbum
  date published: 2019-08-01
album: En Vivo, Vol. 2
  type: MusicAlbum
  date published: 2019-12-09
album: Lo Mejor Que Me Paso
  type: MusicAlbum
  date published: 2020-04-01
album: Me Quedo Contigo
  type: MusicAlbum
  date published: 2020-06-17
album: El Guero Ranas (En Vivo)
  type: MusicAlbum
  date published: 2020-07-08
album: Yo Estaba Dispuesto (En Vivo)
  type: MusicAlbum
  date published: 2020-07-11
album: Capitan America En Vivo
  type: MusicAlbum
  date published: 2021-02-24
album: Te Quiero y Puedo
  type: MusicAlbum
  date published: 2021-03-30
album: La Fea
  type: MusicAlbum
  date published: 2021-05-28
album: Nuevo Inicio (En Vivo)
  type: MusicAlbum
  date published: 2021-06-11
album: A Mi Papa
  type: MusicAlbum
  date published: 2021-06-18
album: En Vivo 2021
  type: MusicAlbum
  date published: 2022-01-20
album: Gente Del Flaco (Live)
  type: MusicAlbum
  date published: 2022-07-01
album: La Playa (En Vivo)
  type: MusicAlbum
  date published: 2022-08-05
album: Ahora Que No Estas (Live)
  type: MusicAlbum
  date published: 2022-08-19
album: Asi Suena Culiacán (Live)
  type: MusicAlbum
  date published: 2022-09-01
album: La Chica Del Bikini Azul
  type: MusicAlbum
  date published: 2023-04-21
album: El de Navolato
  type: MusicAlbum
  date published: 2023-05-11
album: Chiquilla
  type: MusicAlbum
  date published: 2023-05-26
album: La Travesura
  type: MusicAlbum
  date published: 2023-07-01
album: A Llegado El Final
  type: MusicAlbum
  date published: 2023-08-04
album: En Vivo Desde la Palapa Vol. 1
  type: MusicAlbum
  date published: 2023-08-18
album: Recuerdos De La Mafia
  type: MusicAlbum
  date published: 2023-09-22
  track: Recuerdos De La Mafia

Recuerdos De La Mafia
type: MusicRecording
duration: PT3M23S
duration ms: 203713
explicit: false
by artist: Fer Mendoza y Los de Negro
in album: Recuerdos De La Mafia
  type: MusicAlbum
  date published: 2023-09-22
isrc code: QM3DF2289899
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T12:58:18+00:00
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: 957039
additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2554db61d5f5e854bd16c746c182cfd95b5ae7d8c137a9860d1e22d6097bf52. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/QM3DF2289899.
  date published: 2026-07-07T13:25:45Z
audio: Recuerdos De La Mafia
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 160.323
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.763
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.821
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
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    value: Major