Stefan Malzew
type: MusicGroup
popularity: 4
followers: 45
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x92703d6e1ef27a3eb0ae84ca5d1f8d9af2c7c4cc8da02e14023c8d1b108e9417
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953968
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953968
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2857d73e-e06d-480d-bd73-e867767599c6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2857d73e-e06d-480d-bd73-e867767599c6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2857d73e-e06d-480d-bd73-e867767599c6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:01:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x92703d6e1ef27a3eb0ae84ca5d1f8d9af2c7c4cc8da02e14023c8d1b108e9417","name":"Stefan Malzew","registered_at":"2026-06-16T03:33:00Z","symbol":"NIM0924232","token_address":"0xe00fcd4e96ef946b68789eaba905d3588d25cc74","type":"artist","uuid":"2857d73e-e06d-480d-bd73-e867767599c6"}
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 0x92703d6e1ef27a3eb0ae84ca5d1f8d9af2c7c4cc8da02e14023c8d1b108e9417. Chain 2 (Bitcoin): anchored in block 953968 (2026-06-16T16:01:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2857d73e-e06d-480d-bd73-e867767599c6.json and https://artists.proofprofile.net/proofs/artist/2857d73e-e06d-480d-bd73-e867767599c6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:01:49Z
  text: {"copyright_id":"0x92703d6e1ef27a3eb0ae84ca5d1f8d9af2c7c4cc8da02e14023c8d1b108e9417","name":"Stefan Malzew","registered_at":"2026-06-16T03:33:00Z","symbol":"NIM0924232","token_address":"0xe00fcd4e96ef946b68789eaba905d3588d25cc74","type":"artist","uuid":"2857d73e-e06d-480d-bd73-e867767599c6"}
track: Elle frequentait la rue Pigalle (arr. S. Malzew)
  type: MusicRecording
  duration: PT4M59S
  duration ms: 299440
  explicit: false
  by artist: Stefan Malzew
  by artist: Louis Maitrier
  by artist: Ute Lemper
  by artist: Vogler String Quartet
  in album: Paris Days, Berlin Nights
    type: MusicAlbum
    date published: 2012-03-20
  isrc code: USUW61200001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T08:59:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8e5b5e84dbb627ec613cecc5c149987272dd7de8e1a747a48f4dca82e18f9d6a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960376
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960376
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUW61200001
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T09:09:19Z
  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 0x8e5b5e84dbb627ec613cecc5c149987272dd7de8e1a747a48f4dca82e18f9d6a. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/USUW61200001.
    date published: 2026-07-31T09:09:19Z
  audio: Elle frequentait la rue Pigalle (arr. S. Malzew)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 111.49
    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: 0.29
    additional property: Energy
      type: PropertyValue
      value: 0.178
    additional property: Speechiness
      type: PropertyValue
      value: 0.047
    additional property: Acousticness
      type: PropertyValue
      value: 0.959
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.158
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.136
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.023
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: L'Accordeoniste (arr. S. Malzew)
  type: MusicRecording
  duration: PT6M11S
  duration ms: 371880
  explicit: false
  by artist: Michel Emer
  by artist: Stefan Malzew
  by artist: Ute Lemper
  by artist: Vogler String Quartet
  in album: Paris Days, Berlin Nights
    type: MusicAlbum
    date published: 2012-03-20
  isrc code: USUW61200002
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T09:35:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x384fceaac599b1448c605efb284483c4f370c5d6459980d4672f2619dd243deb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960381
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960381
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUW61200002
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T09:50:11Z
  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 0x384fceaac599b1448c605efb284483c4f370c5d6459980d4672f2619dd243deb. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/USUW61200002.
    date published: 2026-07-31T09:50:11Z
  audio: L'Accordeoniste (arr. S. Malzew)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 116.798
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.353
    additional property: Energy
      type: PropertyValue
      value: 0.336
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.931
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.324
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Valence (Positivity)
type: PropertyValue
value: 0.202

Loudness (dB)
type: PropertyValue
value: -15.892

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major