Arthur Schwarz
type: MusicGroup
description: Arthur Schwarz (1890–1957) was a German art director.https://www.filmportal.de/person/artur-schwarz_0783400f27c34f8d801dada9cc2b1dce He designed film sets in the German film industry during the Weimar
popularity: 3
followers: 84
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc5b8ad475a14e1c7a22db4475c2296dd7b40e9130c2853f690f7d765ab743045
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4b0537b-74f3-43ae-b140-1842060a07d3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4b0537b-74f3-43ae-b140-1842060a07d3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a4b0537b-74f3-43ae-b140-1842060a07d3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc5b8ad475a14e1c7a22db4475c2296dd7b40e9130c2853f690f7d765ab743045","name":"Arthur Schwarz","registered_at":"2026-06-20T07:02:34Z","symbol":"NIM1548602","token_address":"0xacfc47f075fad272ae152b2ad156a703fad10150","type":"artist","uuid":"a4b0537b-74f3-43ae-b140-1842060a07d3"}
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 0xc5b8ad475a14e1c7a22db4475c2296dd7b40e9130c2853f690f7d765ab743045. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4b0537b-74f3-43ae-b140-1842060a07d3.json and https://artists.proofprofile.net/proofs/artist/a4b0537b-74f3-43ae-b140-1842060a07d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0xc5b8ad475a14e1c7a22db4475c2296dd7b40e9130c2853f690f7d765ab743045","name":"Arthur Schwarz","registered_at":"2026-06-20T07:02:34Z","symbol":"NIM1548602","token_address":"0xacfc47f075fad272ae152b2ad156a703fad10150","type":"artist","uuid":"a4b0537b-74f3-43ae-b140-1842060a07d3"}
track: Berlin: Dancing With Fred Astaire

Berlin: Dancing With Fred Astaire
type: MusicRecording
duration: PT9M38S
duration ms: 578986
explicit: false
by artist: Irving Berlin
by artist: Jerome Kern
by artist: Arthur Schwarz
by artist: Con Conrad
by artist: Vincent Youmans
by artist: Boston Pops Orchestra
by artist: John Williams
in album: Salute To Hollywood
  type: MusicAlbum
  date published: 1989-01-01
genre: tin-pan-alley
isrc code: NLA508803609
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:21:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1383604fef8bbd62954cc7bf40c6d0b95c4727b8fd1173e4c8782359fc12ebca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508803609
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1383604fef8bbd62954cc7bf40c6d0b95c4727b8fd1173e4c8782359fc12ebca. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLA508803609.
  date published: 2026-07-08T03:53:27Z
audio: Berlin: Dancing With Fred Astaire
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.106
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.166
  additional property: Energy
    type: PropertyValue
    value: 0.193
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.922
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.887
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.189
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.315
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major