Nicolas Fehr
type: MusicGroup
genre: neoclassical
popularity: 5
followers: 495
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb42f75238996f3888ce5ee6139f66941333793b0aef78f663afce5918d22269f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/51f0e601-3fab-457e-a80f-d91c021ee1f8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/51f0e601-3fab-457e-a80f-d91c021ee1f8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/51f0e601-3fab-457e-a80f-d91c021ee1f8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb42f75238996f3888ce5ee6139f66941333793b0aef78f663afce5918d22269f","name":"Nicolas Fehr","registered_at":"2026-06-16T18:28:01Z","symbol":"NIM1137852","token_address":"0x753f3bc9be9bd941b825848da787bcc52e367c4f","type":"artist","uuid":"51f0e601-3fab-457e-a80f-d91c021ee1f8"}
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 0xb42f75238996f3888ce5ee6139f66941333793b0aef78f663afce5918d22269f. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/51f0e601-3fab-457e-a80f-d91c021ee1f8.json and https://artists.proofprofile.net/proofs/artist/51f0e601-3fab-457e-a80f-d91c021ee1f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xb42f75238996f3888ce5ee6139f66941333793b0aef78f663afce5918d22269f","name":"Nicolas Fehr","registered_at":"2026-06-16T18:28:01Z","symbol":"NIM1137852","token_address":"0x753f3bc9be9bd941b825848da787bcc52e367c4f","type":"artist","uuid":"51f0e601-3fab-457e-a80f-d91c021ee1f8"}
album: Violet
  type: MusicAlbum
  date published: 2020-11-11
album: Violet XLVIII
  type: MusicAlbum
  date published: 2020-12-31
album: Square
  type: MusicAlbum
  date published: 2024-12-06
  track: Square
    type: MusicRecording
    duration: PT2M11S
    duration ms: 131612
    explicit: false
    by artist: Nicolas Fehr
    in album: Square
      type: MusicAlbum
      date published: 2024-12-06
    genre: neoclassical
    isrc code: DEZD92000272
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T05:31:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7e3132000aca4a1529a0c7cfa5fe6618577e3a38b4d6ddecc0c162279ed1260e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958977
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958977
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZD92000272
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T06:27:23Z
    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 0x7e3132000aca4a1529a0c7cfa5fe6618577e3a38b4d6ddecc0c162279ed1260e. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/DEZD92000272.
      date published: 2026-07-21T06:27:23Z
    audio: Square
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.106
      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: 0.616
      additional property: Energy
        type: PropertyValue
        value: 0.637
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.217
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.601
      additional property: Liveness
        type: PropertyValue
        value: 0.124
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.772
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.65
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Poker
  type: MusicAlbum
  date published: 2025-02-11
album: Traum
  type: MusicAlbum
  date published: 2025-04-16
album: Sterne
  type: MusicAlbum
  date published: 2025-06-18
  track: Sterne
    type: MusicRecording
    duration: PT3M53S
    duration ms: 233918
    explicit: false
    by artist: Nicolas Fehr
    in album: Sterne
      type: MusicAlbum
      date published: 2025-06-18
    genre: neoclassical
    isrc code: DEZD92000352
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T02:43:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1cb84a9afa7dc890af277419ccb8363dc6d60e3830c6f3755430110c844e2267
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZD92000352
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0x1cb84a9afa7dc890af277419ccb8363dc6d60e3830c6f3755430110c844e2267. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEZD92000352.
      date published: 2026-07-04T10:04:33Z
    audio: Sterne
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 70.978
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.25
      additional property: Energy
        type: PropertyValue
        value: 0.109
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Der Clown

Speechiness
type: PropertyValue
value: 0.035

Acousticness
type: PropertyValue
value: 0.829

Instrumentalness
type: PropertyValue
value: 0.008

Liveness
type: PropertyValue
value: 0.308

Valence (Positivity)
type: PropertyValue
value: 0.212

Loudness (dB)
type: PropertyValue
value: -12.614

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Major

Der Clown
type: MusicAlbum
date published: 2025-09-05