Hans Tschammer
type: MusicGroup
popularity: 5
followers: 124
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b16a13f1d8886d6beb394fa3833cb4131e02aa3e25cd548231556cdafe12d1. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba6d280d-bf71-477a-8b39-4b6bc8c246f5.json and https://artists.proofprofile.net/proofs/artist/ba6d280d-bf71-477a-8b39-4b6bc8c246f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x35b16a13f1d8886d6beb394fa3833cb4131e02aa3e25cd548231556cdafe12d1","name":"Hans Tschammer","registered_at":"2026-06-20T17:06:06Z","symbol":"NIM1661213","token_address":"0x528c18d5f991ad2c14482f81d52ed0022e075f8a","type":"artist","uuid":"ba6d280d-bf71-477a-8b39-4b6bc8c246f5"}
album: Wagner: Das Rheingold
  type: MusicAlbum
  date published: 1989
track: Beethoven: Missa solemnis in D Major, Op. 123: Agnus Dei

Beethoven: Missa solemnis in D Major, Op. 123: Agnus Dei
type: MusicRecording
duration: PT6M11S
duration ms: 371426
explicit: false
by artist: Ludwig van Beethoven
by artist: Jeffrey Tate
by artist: Carol Vaness
by artist: Waltraud Meier
by artist: Hans Peter Blochwitz
by artist: Hans Tschammer
by artist: Tallis Chamber Choir
by artist: English Chamber Orchestra
in album: The Very Best of Beethoven
  type: MusicAlbum
  date published: 2019-08-23
popularity: 14
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: GBAYC8901156
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8901156
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09+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
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fe3999ce9d13a67ef9d6ab38d8f513d686715b4405f901913017935da4580d. 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/GBAYC8901156.
  date published: 2026-07-02T03:55:08Z
audio: Beethoven: Missa solemnis in D Major, Op. 123: Agnus Dei
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
    type: PropertyValue
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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    value: E
  additional property: Mode Name
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