Los Feders
type: MusicGroup
genre: cumbia
genre: cumbia sonidera
popularity: 10
followers: 3218
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xbd17b0cd4c2afd44510b22961e9960ee938508fa30cb295c60fa1c700829c137
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/502a2fe8-6996-490c-8ef0-fdecad6ef945.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/502a2fe8-6996-490c-8ef0-fdecad6ef945.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/502a2fe8-6996-490c-8ef0-fdecad6ef945
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbd17b0cd4c2afd44510b22961e9960ee938508fa30cb295c60fa1c700829c137","name":"Los Feders","registered_at":"2026-06-16T17:29:11Z","symbol":"NIM1123817","token_address":"0xb91c859bf8cd11cb9fd26d3acf1d92061652efe1","type":"artist","uuid":"502a2fe8-6996-490c-8ef0-fdecad6ef945"}
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 0xbd17b0cd4c2afd44510b22961e9960ee938508fa30cb295c60fa1c700829c137. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/502a2fe8-6996-490c-8ef0-fdecad6ef945.json and https://artists.proofprofile.net/proofs/artist/502a2fe8-6996-490c-8ef0-fdecad6ef945.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xbd17b0cd4c2afd44510b22961e9960ee938508fa30cb295c60fa1c700829c137","name":"Los Feders","registered_at":"2026-06-16T17:29:11Z","symbol":"NIM1123817","token_address":"0xb91c859bf8cd11cb9fd26d3acf1d92061652efe1","type":"artist","uuid":"502a2fe8-6996-490c-8ef0-fdecad6ef945"}
album: Cumbia Cholula (100% Sonidero Poblano)
  type: MusicAlbum
  date published: 2002-05-05
album: Homenaje Sonidero
  type: MusicAlbum
  date published: 2005-02-01
  track: La Danza del Chango
    type: MusicRecording
    duration: PT3M40S
    duration ms: 220506
    explicit: false
    by artist: Los Feders
    in album: Homenaje Sonidero
      type: MusicAlbum
      date published: 2005-02-01
    genre: cumbia
    genre: cumbia sonidera
    isrc code: USKH40501382
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T22:46:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb5529ce12404bc34ea99888908c72dae95e421ec4819bdebb34e312c3e6bf397
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958792
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958792
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USKH40501382
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T22:55:52Z
    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 0xb5529ce12404bc34ea99888908c72dae95e421ec4819bdebb34e312c3e6bf397. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USKH40501382.
      date published: 2026-07-19T22:55:52Z
    audio: La Danza del Chango
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 92.575
      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: 0.768
      additional property: Energy
        type: PropertyValue
        value: 0.887
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.026
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.223
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.759
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.245
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Quiero Llorar (100% Cumbia Sonidera)
  type: MusicAlbum
  date published: 2005-02-01
album: Sigue la Federmania Desde New York
  type: MusicAlbum
  date published: 2017-02-20
  track: Negrita Cumbiambera
    type: MusicRecording
    duration: PT3M12S
    duration ms: 192306
    explicit: false
    by artist: Los Feders
    in album: Sigue la Federmania Desde New York
      type: MusicAlbum
      date published: 2017-02-20
    genre: cumbia
    genre: cumbia sonidera
    isrc code: QM6DC1711659
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T03:38:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9b10c3ff679bea805c294167f7a2cff5997d7de87c2c4a80fd38731e782f2f33
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6DC1711659
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0x9b10c3ff679bea805c294167f7a2cff5997d7de87c2c4a80fd38731e782f2f33. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM6DC1711659.
      date published: 2026-07-04T10:04:33Z
    audio: Negrita Cumbiambera
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 180.321
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.592
      additional property: Energy
        type: PropertyValue
        value: 0.355
      additional property: Speechiness
        type: PropertyValue
        value: 0.218
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Linda Niña
album: Chica Bom Bom
album: Estela
album: Te Sigo Amando
album: Ya Lo Pagarás Amor
album: Cumbia Gala
album: La Federmania
album: Cumbia vallenata
album: Tu despedida
album: Linda niña
album: Un Tequilita
album: Fiesta Sonidera

Acousticness
type: PropertyValue
value: 0.05

Instrumentalness
type: PropertyValue
value: 0.095

Liveness
type: PropertyValue
value: 0.238

Valence (Positivity)
type: PropertyValue
value: 0.722

Loudness (dB)
type: PropertyValue
value: -17.705

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major

Homenaje Sonidero
type: MusicAlbum
date published: 2018-04-01

Linda Niña
type: MusicAlbum
date published: 2020-12-17

Chica Bom Bom
type: MusicAlbum
date published: 2021-02-16

Estela
type: MusicAlbum
date published: 2021-02-17

Te Sigo Amando
type: MusicAlbum
date published: 2021-02-17

Ya Lo Pagarás Amor
type: MusicAlbum
date published: 2021-10-29

Cumbia Gala
type: MusicAlbum
date published: 2021-10-29

La Federmania
type: MusicAlbum
date published: 2023-06-01

Cumbia vallenata
type: MusicAlbum
date published: 2024-01-28

Tu despedida
type: MusicAlbum
date published: 2024-01-29

Linda niña
type: MusicAlbum
date published: 2024-01-29

Un Tequilita
type: MusicAlbum
date published: 2025-04-05

Fiesta Sonidera
type: MusicAlbum
date published: 2025-04-05