Alexander Grychtolik
type: MusicGroup
description: Alexander Ferdinand Grychtolik (born 6 September 1980 in Berlin) is a German harpsichordist, improviser, musicologist and academic. Grychtolik is married to the harpsichordist Aleksandra Magdalena Gr
popularity: 7
followers: 345
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf69269935a5f96b2f1a94237953866f013627671b331cfce4f67f8fcd9d876a4
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/6b2508ff-c567-4492-bad0-1cc766103a72.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6b2508ff-c567-4492-bad0-1cc766103a72.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6b2508ff-c567-4492-bad0-1cc766103a72
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf69269935a5f96b2f1a94237953866f013627671b331cfce4f67f8fcd9d876a4","name":"Alexander Grychtolik","registered_at":"2026-06-17T02:52:04Z","symbol":"NIM1258115","token_address":"0xcf03ceae821cead23970000e8258a52516515e34","type":"artist","uuid":"6b2508ff-c567-4492-bad0-1cc766103a72"}
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 0xf69269935a5f96b2f1a94237953866f013627671b331cfce4f67f8fcd9d876a4. 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/6b2508ff-c567-4492-bad0-1cc766103a72.json and https://artists.proofprofile.net/proofs/artist/6b2508ff-c567-4492-bad0-1cc766103a72.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xf69269935a5f96b2f1a94237953866f013627671b331cfce4f67f8fcd9d876a4","name":"Alexander Grychtolik","registered_at":"2026-06-17T02:52:04Z","symbol":"NIM1258115","token_address":"0xcf03ceae821cead23970000e8258a52516515e34","type":"artist","uuid":"6b2508ff-c567-4492-bad0-1cc766103a72"}
album: Bach: Celebration Cantatas - Blast Lärmen ihr Feinde, BWV 205a / Entfliehet ihr Sorgen, BWV 249a (Schäferkantate)
  type: MusicAlbum
  date published: 2019-04-12
  track: Blast Lärmen, ihr Feinde!, BWV 205a, "Krönungskantate": I. Blast Lärmen, ihr Feinde! (Chorus)
    type: MusicRecording
    duration: PT6M11S
    duration ms: 371346
    explicit: false
    by artist: Johann Sebastian Bach
    by artist: Alexander Grychtolik
    by artist: Deutsche Hofmusik
    by artist: Miriam Feuersinger
    by artist: Elvira Bill
    by artist: Daniel Johannsen
    by artist: Stephan MacLeod
    in album: Bach: Celebration Cantatas - Blast Lärmen ihr Feinde, BWV 205a / Entfliehet ihr Sorgen, BWV 249a (Schäferkantate)
      type: MusicAlbum
      date published: 2019-04-12
    genre: classical
    genre: classical-piano
    genre: early-music
    genre: baroque
    genre: chamber-music
    genre: concerto
    isrc code: DEE471900016
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-31T17:01:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcf715a4b795846ee3d08d44e988cc6dee9f01a0bac94981d6905e5ea03ae5ad8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960441
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960441
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE471900016
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-31T17:29:52Z
    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 0xcf715a4b795846ee3d08d44e988cc6dee9f01a0bac94981d6905e5ea03ae5ad8. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE471900016 — a six-check JSON result.
      date published: 2026-07-31T17:29:52Z
    audio: Blast Lärmen, ihr Feinde!, BWV 205a, "Krönungskantate": I. Blast Lärmen, ihr Feinde! (Chorus)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 115.237
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.514
      additional property: Energy
        type: PropertyValue
        value: 0.537
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.925
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.595
      additional property: Liveness
        type: PropertyValue
        value: 0.055
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.676
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.429
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Entfliehet, verschwindet, entweichet, ihr Sorgen, BWV 249a, "Schäferkantate"/III. Entfliehet, verschwindet, entweichet, ihr Sorgen (Duetto)
  type: MusicAlbum
  date published: 2019-03-22