Magnus Ludwigsson
type: MusicGroup
popularity: 11
followers: 533
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x74ae626af590aae45e4bbade5003e0202830526cbe16cce6592bce9ef9645d83
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953694
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953694
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6d95b42c-a290-4010-aaf0-9acd0d156e16.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6d95b42c-a290-4010-aaf0-9acd0d156e16.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6d95b42c-a290-4010-aaf0-9acd0d156e16
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:38:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x74ae626af590aae45e4bbade5003e0202830526cbe16cce6592bce9ef9645d83","name":"Magnus Ludwigsson","registered_at":"2026-06-14T15:59:07Z","symbol":"NIM0503292","token_address":"0x78414d7a850e75f97075576f89f8390b58139d87","type":"artist","uuid":"6d95b42c-a290-4010-aaf0-9acd0d156e16"}
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 0x74ae626af590aae45e4bbade5003e0202830526cbe16cce6592bce9ef9645d83. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6d95b42c-a290-4010-aaf0-9acd0d156e16.json and https://artists.proofprofile.net/proofs/artist/6d95b42c-a290-4010-aaf0-9acd0d156e16.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:42:01Z
  text: {"copyright_id":"0x74ae626af590aae45e4bbade5003e0202830526cbe16cce6592bce9ef9645d83","name":"Magnus Ludwigsson","registered_at":"2026-06-14T15:59:07Z","symbol":"NIM0503292","token_address":"0x78414d7a850e75f97075576f89f8390b58139d87","type":"artist","uuid":"6d95b42c-a290-4010-aaf0-9acd0d156e16"}
album: Christmas Piano
  type: MusicAlbum
  date published: 2005-09-15
album: Christmas Piano - 25 X-Mas Songs
  type: MusicAlbum
  date published: 2011-12-06
  track: Cantata, BWV 147: Jesu, Joy of Mans' Desiring
    type: MusicRecording
    duration: PT3M38S
    duration ms: 218010
    explicit: false
    by artist: Magnus Ludwigsson
    in album: Christmas Piano - 25 X-Mas Songs
      type: MusicAlbum
      date published: 2011-12-06
    isrc code: SEWDL6009631
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-29T07:20:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4c5c4a3f6721046a929cda403e2eea3f6014d980e5956858d803001512bbff19
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956375
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956375
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL6009631
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T16:51:38Z
    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 0x4c5c4a3f6721046a929cda403e2eea3f6014d980e5956858d803001512bbff19. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SEWDL6009631.
      date published: 2026-07-02T16:51:38Z
    audio: Cantata, BWV 147: Jesu, Joy of Mans' Desiring
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 93.534
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.494
      additional property: Energy
        type: PropertyValue
        value: 0.155
      additional property: Speechiness
        type: PropertyValue
        value: 0.06
      additional property: Acousticness
        type: PropertyValue
        value: 0.994
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.901
      additional property: Liveness
        type: PropertyValue
        value: 0.172
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.727
      additional property: Loudness (dB)
        type: PropertyValue
        value: -21.088
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Christmas Piano
  type: MusicAlbum
  date published: 2019-09-20
track: Cantata, BWV 147: Jesu, Joy of Mans' Desiring
  type: MusicRecording
  duration: PT3M38S
  duration ms: 218010
  explicit: false
  by artist: Johann Sebastian Bach
  by artist: Magnus Ludwigsson
  in album: Best - Bach
    type: MusicAlbum
    date published: 2012-03-21
  genre: classical
  genre: classical-piano
  isrc code: SEWDL6009631
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-29T07:20:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4c5c4a3f6721046a929cda403e2eea3f6014d980e5956858d803001512bbff19
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957052
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957052
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL6009631
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T14:50:41Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5c4a3f6721046a929cda403e2eea3f6014d980e5956858d803001512bbff19. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/SEWDL6009631.
    date published: 2026-07-07T14:50:41Z
  audio: Cantata, BWV 147: Jesu, Joy of Mans' Desiring
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 113.603
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.494
    additional property: Energy
      type: PropertyValue
      value: 0.155
    additional property: Speechiness
      type: PropertyValue
      value: 0.06
    additional property: Acousticness
      type: PropertyValue
      value: 0.994
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Instrumentalness
type: PropertyValue
value: 0.901

Liveness
type: PropertyValue
value: 0.172

Valence (Positivity)
type: PropertyValue
value: 0.727

Loudness (dB)
type: PropertyValue
value: -24.081

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major