SMF
type: MusicGroup
genre: hardstyle
popularity: 27
followers: 3446
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x50c12d13ebae3b600f066ec64df3fc86eabb00add5ee3014e9b826d7dbdf9f23
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0a9dd6e7-4ccc-438e-9b68-013a14343a9c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0a9dd6e7-4ccc-438e-9b68-013a14343a9c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0a9dd6e7-4ccc-438e-9b68-013a14343a9c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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 0x50c12d13ebae3b600f066ec64df3fc86eabb00add5ee3014e9b826d7dbdf9f23. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a9dd6e7-4ccc-438e-9b68-013a14343a9c.json and https://artists.proofprofile.net/proofs/artist/0a9dd6e7-4ccc-438e-9b68-013a14343a9c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
album: Dalje neces moci
  type: MusicAlbum
  date published: 1994-01-01
album: Dalje neces moci
  type: MusicAlbum
  date published: 1994-01-01
album: Lako cemo
  type: MusicAlbum
  date published: 1998-01-01
album: Lako cemo
  type: MusicAlbum
  date published: 1998-06-16
album: Hahaha !
  type: MusicAlbum
  date published: 2006
album: Audio Abuse Trancemix
  type: MusicAlbum
  date published: 2006-08-24
album: Hardstyle Sex Live at Q
  type: MusicAlbum
  date published: 2006-08-24
album: Audio Abuse Tekmix
  type: MusicAlbum
  date published: 2006-08-24
album: Hardstyle Sex Hardmix
  type: MusicAlbum
  date published: 2006-08-24
album: Hardstyle Sex Hardtrance Mix
  type: MusicAlbum
  date published: 2006-08-24
album: Hardstyle Sex Hardtrance Mix II
  type: MusicAlbum
  date published: 2006-08-24
album: Hahaha - Stetix (Remix)
  type: MusicAlbum
  date published: 2011
  track: Hahaha - Stetix - Remix
    type: MusicRecording
    duration: PT3M45S
    duration ms: 225812
    explicit: false
    by artist: SMF
    in album: Hahaha - Stetix (Remix)
      type: MusicAlbum
      date published: 2011
    genre: hardstyle
    isrc code: QZTVM2470675
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T13:47:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x57fd0af97cb236ba262aedb7e11b628a0e1c1d37db2c7eaa800a0fccf5fd7225
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958742
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958742
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTVM2470675
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T14:09:34Z
    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 0x57fd0af97cb236ba262aedb7e11b628a0e1c1d37db2c7eaa800a0fccf5fd7225. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZTVM2470675.
      date published: 2026-07-19T14:09:34Z
    audio: Hahaha - Stetix - Remix
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 150.023
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.721
      additional property: Energy
        type: PropertyValue
        value: 0.583
      additional property: Speechiness
        type: PropertyValue
        value: 0.119
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.852
      additional property: Liveness
        type: PropertyValue
        value: 0.052
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.282
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.219
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: SMF
  type: MusicAlbum
  date published: 2011-01-13
album: Lako cemo
  type: MusicAlbum
  date published: 2013-10-07
album: Young Guns 2014
  type: MusicAlbum
  date published: 2014-04-08
album: Boli Glava
  type: MusicAlbum
  date published: 2016-06-06
album: Boli glava
  type: MusicAlbum
  date published: 2016-06-06
album: Profitten 2019
  type: MusicAlbum
  date published: 2018-10-08
album: Blackjack 2019
  type: MusicAlbum
  date published: 2019-04-14
album: Frivole Party
  type: MusicAlbum
  date published: 2020-10-30
album: Frivole Party
  type: MusicAlbum
  date published: 2021-10-15
album: Eltemetem
  type: MusicAlbum
  date published: 2022-09-03
album: Eltemetem
  type: MusicAlbum
  date published: 2022-09-03
album: Soeka Musik Festival
  type: MusicAlbum
  date published: 2025-03-20