Fabi Metzker
type: MusicGroup
popularity: 3
followers: 412
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x62507deacb2dcd2b818ea957354cdbb10818809fe5d83e7762c1544125ae4e15
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954573
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954573
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b4d2987c-bbe5-4ac4-8c79-99442282aaa0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b4d2987c-bbe5-4ac4-8c79-99442282aaa0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b4d2987c-bbe5-4ac4-8c79-99442282aaa0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T15:45:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x62507deacb2dcd2b818ea957354cdbb10818809fe5d83e7762c1544125ae4e15","name":"Fabi Metzker","registered_at":"2026-06-20T14:21:24Z","symbol":"NIM1630406","token_address":"0x5de840ca204152402bf4e9d9640966de886f31d3","type":"artist","uuid":"b4d2987c-bbe5-4ac4-8c79-99442282aaa0"}
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 0x62507deacb2dcd2b818ea957354cdbb10818809fe5d83e7762c1544125ae4e15. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b4d2987c-bbe5-4ac4-8c79-99442282aaa0.json and https://artists.proofprofile.net/proofs/artist/b4d2987c-bbe5-4ac4-8c79-99442282aaa0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T15:45:29Z
  text: {"copyright_id":"0x62507deacb2dcd2b818ea957354cdbb10818809fe5d83e7762c1544125ae4e15","name":"Fabi Metzker","registered_at":"2026-06-20T14:21:24Z","symbol":"NIM1630406","token_address":"0x5de840ca204152402bf4e9d9640966de886f31d3","type":"artist","uuid":"b4d2987c-bbe5-4ac4-8c79-99442282aaa0"}
album: Undoing
  type: MusicAlbum
  date published: 2016-04-20
album: Undoing
  type: MusicAlbum
  date published: 2016-04-21
album: Endure
  type: MusicAlbum
  date published: 2019-10-17
album: Live Sessions at Speciali Trattoria
  type: MusicAlbum
  date published: 2020-07-22
album: No Diggity
  type: MusicAlbum
  date published: 2020-09-24
album: Kiss
  type: MusicAlbum
  date published: 2020-10-03
album: Forever Bound
  type: MusicAlbum
  date published: 2022-09-02
album: Eleven
  type: MusicAlbum
  date published: 2022-11-25
album: Serendipity
  type: MusicAlbum
  date published: 2024-11-15
album: Positive Vibes
  type: MusicAlbum
  date published: 2025-03-14
album: Lady Fab
  type: MusicAlbum
  date published: 2025-10-03
  track: Eleven
    type: MusicRecording
    duration: PT2M50S
    duration ms: 170348
    explicit: false
    by artist: Fabi Metzker
    in album: Lady Fab
      type: MusicAlbum
      date published: 2025-10-03
    isrc code: QZTPX2559858
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T20:46:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6936a9dcd39b5dc821de059a5373c085e77615128ff84df9646ecd0770b2aed7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958931
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958931
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTPX2559858
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T21:15:01Z
    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 0x6936a9dcd39b5dc821de059a5373c085e77615128ff84df9646ecd0770b2aed7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZTPX2559858.
      date published: 2026-07-20T21:15:01Z
    audio: Eleven
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 146.215
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.72
      additional property: Energy
        type: PropertyValue
        value: 0.469
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.295
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.248
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.306
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.788
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor