MC43
type: MusicGroup
popularity: 2
followers: 129
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6648eb94091aac40f38521460239ec7353c97190c5499822555c2b43483f3fe6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e6700a4a-3a48-4ced-bdcb-42c65a921f56.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e6700a4a-3a48-4ced-bdcb-42c65a921f56.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e6700a4a-3a48-4ced-bdcb-42c65a921f56
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
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 0x6648eb94091aac40f38521460239ec7353c97190c5499822555c2b43483f3fe6. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e6700a4a-3a48-4ced-bdcb-42c65a921f56.json and https://artists.proofprofile.net/proofs/artist/e6700a4a-3a48-4ced-bdcb-42c65a921f56.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
album: GRATIS
  type: MusicAlbum
  date published: 2022-03-11
album: SCHIEBEDACH
  type: MusicAlbum
  date published: 2022-09-22
album: KAPITEL 43
  type: MusicAlbum
  date published: 2023-05-25
album: FILMRISS
  type: MusicAlbum
  date published: 2023-12-14
album: NÜME ZRUGG
  type: MusicAlbum
  date published: 2024-02-01
album: WIESO?
  type: MusicAlbum
  date published: 2024-02-22
album: DICH DA
  type: MusicAlbum
  date published: 2024-05-02
album: <3
  type: MusicAlbum
  date published: 2024-05-16
album: HEYBABY
  type: MusicAlbum
  date published: 2024-08-08
album: VERGÄSSE
  type: MusicAlbum
  date published: 2024-08-22
album: YEAH
  type: MusicAlbum
  date published: 2024-10-10
album: SCHÖN ISCHES GSI
  type: MusicAlbum
  date published: 2025-06-12
  track: IM VERGLICH
    type: MusicRecording
    duration: PT2M17S
    duration ms: 137851
    explicit: true
    by artist: MC43
    in album: SCHÖN ISCHES GSI
      type: MusicAlbum
      date published: 2025-06-12
    isrc code: QZTAS2525228
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T06:54:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x25e6c20aa851ddd830025b0e3e0fc55546c7ae01962f2f7607767724f7231196
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959109
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959109
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAS2525228
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T09:56:30Z
    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 0x25e6c20aa851ddd830025b0e3e0fc55546c7ae01962f2f7607767724f7231196. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T09:56:30Z), 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/QZTAS2525228.
      date published: 2026-07-22T09:56:30Z
    audio: IM VERGLICH
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.97
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.925
      additional property: Energy
        type: PropertyValue
        value: 0.318
      additional property: Speechiness
        type: PropertyValue
        value: 0.144
      additional property: Acousticness
        type: PropertyValue
        value: 0.244
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.218
      additional property: Liveness
        type: PropertyValue
        value: 0.089
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.128
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.839
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: HIP HIP HOP
  type: MusicAlbum
  date published: 2025-10-10