Wolfgang Martsen
type: MusicGroup
popularity: 7
followers: 19
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7d4045185ebb3e4c1d12eed5da5ea5893a55593f7bd570e304ad84fe87a4eca4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cea78046-d8bc-4276-8db3-b0bd60ee6fc0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cea78046-d8bc-4276-8db3-b0bd60ee6fc0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cea78046-d8bc-4276-8db3-b0bd60ee6fc0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7d4045185ebb3e4c1d12eed5da5ea5893a55593f7bd570e304ad84fe87a4eca4","name":"Wolfgang Martsen","registered_at":"2026-06-21T00:15:48Z","symbol":"NIM1760392","token_address":"0x47caa4a3b4752aaa3a1ba89c6b9c2861338db5df","type":"artist","uuid":"cea78046-d8bc-4276-8db3-b0bd60ee6fc0"}
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 0x7d4045185ebb3e4c1d12eed5da5ea5893a55593f7bd570e304ad84fe87a4eca4. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cea78046-d8bc-4276-8db3-b0bd60ee6fc0.json and https://artists.proofprofile.net/proofs/artist/cea78046-d8bc-4276-8db3-b0bd60ee6fc0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x7d4045185ebb3e4c1d12eed5da5ea5893a55593f7bd570e304ad84fe87a4eca4","name":"Wolfgang Martsen","registered_at":"2026-06-21T00:15:48Z","symbol":"NIM1760392","token_address":"0x47caa4a3b4752aaa3a1ba89c6b9c2861338db5df","type":"artist","uuid":"cea78046-d8bc-4276-8db3-b0bd60ee6fc0"}
album: Utopia
  type: MusicAlbum
  date published: 2024-06-12
  track: Utopia
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206000
    explicit: false
    by artist: Wolfgang Martsen
    in album: Utopia
      type: MusicAlbum
      date published: 2024-06-12
    isrc code: SEXGF2400349
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-31T18:08:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd720495d7e295587cab497b44cd25692f3d21909a2118c6538e8a5019acfc84e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960448
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960448
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEXGF2400349
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-31T18:48:12Z
    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 0xd720495d7e295587cab497b44cd25692f3d21909a2118c6538e8a5019acfc84e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/SEXGF2400349.
      date published: 2026-07-31T18:48:12Z
    audio: Utopia
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.684
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.128
      additional property: Energy
        type: PropertyValue
        value: 0.001
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.968
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.97
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.04
      additional property: Loudness (dB)
        type: PropertyValue
        value: -46.882
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Soothing Sleepwalker
  type: MusicAlbum
  date published: 2022-11-28
  track: Soothing Sleepwalker
    type: MusicRecording
    duration: PT3M16S
    duration ms: 196732
    explicit: false
    by artist: Wolfgang Martsen
    in album: Soothing Sleepwalker
      type: MusicAlbum
      date published: 2022-11-28
    isrc code: SEXGF2203122
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-19T04:27:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfa1a77603049ea386aa7654d39334baed758213295736600d294b6142b050314
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956302
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956302
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEXGF2203122
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T03:30:09Z
    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 0xfa1a77603049ea386aa7654d39334baed758213295736600d294b6142b050314. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/SEXGF2203122.
      date published: 2026-07-02T03:30:09Z
    audio: Soothing Sleepwalker
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.833
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.07
      additional property: Energy
        type: PropertyValue
        value: 0.048
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.844
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.911
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.037
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Imaginatory
album: Clairvoyant Dreamstage
album: Dreamfallen Descent

Loudness (dB)
type: PropertyValue
value: -31.83

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major

Imaginatory
type: MusicAlbum
date published: 2022-04-15

Clairvoyant Dreamstage
type: MusicAlbum
date published: 2022-01-14
track: Clairvoyant Dreamstage
  type: MusicRecording
  duration: PT2M47S
  duration ms: 167384
  explicit: false
  by artist: Wolfgang Martsen
  in album: Clairvoyant Dreamstage
    type: MusicAlbum
    date published: 2022-01-14
  isrc code: SEXGF2199652
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-26T15:01:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4d093492121e7f300f052ae8b179ac1664eebc729fb539a1b97ddc59bc2259ec
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEXGF2199652
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0x4d093492121e7f300f052ae8b179ac1664eebc729fb539a1b97ddc59bc2259ec. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEXGF2199652.
    date published: 2026-07-02T03:55:08Z
  audio: Clairvoyant Dreamstage
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 96.548
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.186
    additional property: Energy
      type: PropertyValue
      value: 0.024
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.909
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.873
    additional property: Liveness
      type: PropertyValue
      value: 0.111
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.036
    additional property: Loudness (dB)
      type: PropertyValue
      value: -31.189
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Dreamfallen Descent
type: MusicAlbum
date published: 2021-08-29