GMF
type: MusicGroup
description: GMF may refer to: Galactic magnetic field Garantie Mutuelle des Fonctionnaires, now part of Covéa, a French insurance company General mail facility General Motors Foundation, an American philanth
popularity: 6
followers: 88
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x879bebb9e0b11f86479e8025790b23ecdcf3b99088762fa7736fcf9f156dafc1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/850d1eb5-5f5a-4d1c-9f5f-75fadc0c66c7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/850d1eb5-5f5a-4d1c-9f5f-75fadc0c66c7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/850d1eb5-5f5a-4d1c-9f5f-75fadc0c66c7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
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 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 0x879bebb9e0b11f86479e8025790b23ecdcf3b99088762fa7736fcf9f156dafc1. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/850d1eb5-5f5a-4d1c-9f5f-75fadc0c66c7.json and https://artists.proofprofile.net/proofs/artist/850d1eb5-5f5a-4d1c-9f5f-75fadc0c66c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
album: Money & Para
  type: MusicAlbum
  date published: 2023-08-13
album: In The Sky
  type: MusicAlbum
  date published: 2023-08-19
album: Cupid / Cuban
  type: MusicAlbum
  date published: 2023-10-03
album: Frozen
  type: MusicAlbum
  date published: 2024-01-12
album: Perfect Body
  type: MusicAlbum
  date published: 2024-03-08
album: ESSENSIELL
  type: MusicAlbum
  date published: 2024-08-05
album: WITH THE GANG
  type: MusicAlbum
  date published: 2024-12-13
album: HS CRIPWALKAH
  type: MusicAlbum
  date published: 2025-01-17
album: PULLMAN 2025, VOL 2.
  type: MusicAlbum
  date published: 2025-01-31
  track: JOKÆRN
    type: MusicRecording
    duration: PT1M55S
    duration ms: 115207
    explicit: true
    by artist: GMF
    in album: PULLMAN 2025, VOL 2.
      type: MusicAlbum
      date published: 2025-01-31
    isrc code: QZDA72515660
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T21:55:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3eac2acde469968081a181c96f8f81dd78a54473177e48447604b20310331cb7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958935
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958935
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA72515660
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T22:08:19Z
    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 0x3eac2acde469968081a181c96f8f81dd78a54473177e48447604b20310331cb7. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZDA72515660.
      date published: 2026-07-20T22:08:19Z
    audio: JOKÆRN
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 93.082
      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: 0.437
      additional property: Energy
        type: PropertyValue
        value: 0.581
      additional property: Speechiness
        type: PropertyValue
        value: 0.265
      additional property: Acousticness
        type: PropertyValue
        value: 0.042
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.358
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.453
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.936
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: NO MEANING
  type: MusicAlbum
  date published: 2025-06-27
album: ESSENSIELL 2
  type: MusicAlbum
  date published: 2025-08-03
album: Haugesund's Finest
  type: MusicAlbum
  date published: 2025-11-08