DFMK
type: MusicGroup
popularity: 4
followers: 1526
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3d8e614b52accf68765fce51eb92b3118080015c693865c74e439c2747af955b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b34856b1-81d1-406c-9827-52a1dedaf7d0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b34856b1-81d1-406c-9827-52a1dedaf7d0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b34856b1-81d1-406c-9827-52a1dedaf7d0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
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 0x3d8e614b52accf68765fce51eb92b3118080015c693865c74e439c2747af955b. 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/b34856b1-81d1-406c-9827-52a1dedaf7d0.json and https://artists.proofprofile.net/proofs/artist/b34856b1-81d1-406c-9827-52a1dedaf7d0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
album: Manual Practico Para la Autodestruccion (2010-2012)
  type: MusicAlbum
  date published: 2012-04-20
album: Negatividad
  type: MusicAlbum
  date published: 2013-06-26
album: 7 Canciones Sobre Un Individualismo Radical
  type: MusicAlbum
  date published: 2016-03-25
album: Self-Titled
  type: MusicAlbum
  date published: 2020-10-09
album: Coffin Curse Split Series, Vol. 2
  type: MusicAlbum
  date published: 2022-04-29
album: Dame Peligro
  type: MusicAlbum
  date published: 2022-05-20
album: Mi Rutina
  type: MusicAlbum
  date published: 2025-08-29
album: Lo que Necesito
  type: MusicAlbum
  date published: 2025-09-26
  track: Lo que Necesito
    type: MusicRecording
    duration: PT1M14S
    duration ms: 74395
    explicit: false
    by artist: DFMK
    in album: Lo que Necesito
      type: MusicAlbum
      date published: 2025-09-26
    isrc code: US2B22552904
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T13:41:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xac89749c42cc53a56112c7b36da185f99a8779d7ddefc980542076d081c75d6a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958905
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958905
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2B22552904
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T16:42:56Z
    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 0xac89749c42cc53a56112c7b36da185f99a8779d7ddefc980542076d081c75d6a. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:42:56Z), 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/US2B22552904.
      date published: 2026-07-20T16:42:56Z
    audio: Lo que Necesito
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 80.424
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.427
      additional property: Energy
        type: PropertyValue
        value: 0.671
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.164
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.069
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.942
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.859
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Playa Nuclear
  type: MusicAlbum
  date published: 2025-10-17