David Friedrich
type: MusicGroup
description: REDIRECT Electric Callboy
popularity: 10
followers: 539
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x406874570c42c4c4dd1c57db84654441ff3bf135a3f01238b70852ccaf604e95
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954500
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9af7fb9e-6035-4b68-8fdc-af14c291864e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9af7fb9e-6035-4b68-8fdc-af14c291864e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9af7fb9e-6035-4b68-8fdc-af14c291864e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T04:47:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x406874570c42c4c4dd1c57db84654441ff3bf135a3f01238b70852ccaf604e95","name":"David Friedrich","registered_at":"2026-06-20T03:41:02Z","symbol":"NIM1500736","token_address":"0x3ab79e34c9955e7081b6382f818642516d778275","type":"artist","uuid":"9af7fb9e-6035-4b68-8fdc-af14c291864e"}
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 0x406874570c42c4c4dd1c57db84654441ff3bf135a3f01238b70852ccaf604e95. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9af7fb9e-6035-4b68-8fdc-af14c291864e.json and https://artists.proofprofile.net/proofs/artist/9af7fb9e-6035-4b68-8fdc-af14c291864e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T04:47:29Z
  text: {"copyright_id":"0x406874570c42c4c4dd1c57db84654441ff3bf135a3f01238b70852ccaf604e95","name":"David Friedrich","registered_at":"2026-06-20T03:41:02Z","symbol":"NIM1500736","token_address":"0x3ab79e34c9955e7081b6382f818642516d778275","type":"artist","uuid":"9af7fb9e-6035-4b68-8fdc-af14c291864e"}
album: C`Est La Vie
  type: MusicAlbum
  date published: 2021-01-08
album: 30
  type: MusicAlbum
  date published: 2021-04-04
album: Carlo
  type: MusicAlbum
  date published: 2021-05-14
album: Sieht nicht danach aus
  type: MusicAlbum
  date published: 2024-03-08
album: Doll
  type: MusicAlbum
  date published: 2024-03-22
  track: Reparatur
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207885
    explicit: false
    by artist: David Friedrich
    in album: Doll
      type: MusicAlbum
      date published: 2024-03-22
    isrc code: TCAHY2466754
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T23:25:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x073e7426112a8e470033a92ca8f3991aeff2d7e4d51f480d7def2d98f9d03642
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAHY2466754
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0x073e7426112a8e470033a92ca8f3991aeff2d7e4d51f480d7def2d98f9d03642. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAHY2466754.
      date published: 2026-07-05T01:12:41Z
    audio: Reparatur
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.039
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.695
      additional property: Energy
        type: PropertyValue
        value: 0.742
      additional property: Speechiness
        type: PropertyValue
        value: 0.124
      additional property: Acousticness
        type: PropertyValue
        value: 0.232
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.41
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.262
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.816
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor