Heinrich Proch
type: MusicGroup
description: thumb|Heinrich Proch; lithography by Joseph Kriehuber 1840 Heinrich Proch (22 July 1809 – 18 December 1878) was an Austrian composer. Born in Vienna, Proch studied jurisprudence and completed his tr
popularity: 5
followers: 53
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f6244c78598434eae85ee56bab5ba22cbe4bd42febd42ebca22d31e7a172eb. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3eed832-33f5-4487-93cf-d527319b2dee.json and https://artists.proofprofile.net/proofs/artist/f3eed832-33f5-4487-93cf-d527319b2dee.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T15:47:51Z
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track: Home Sweet Home
  type: MusicRecording
  duration: PT2M44S
  duration ms: 164111
  explicit: false
  by artist: Giuseppe Verdi
  by artist: Heinrich Proch
  by artist: Thomas Moore
  by artist: Charles Gounod
  by artist: Georges Bizet
  by artist: William Shakespeare
  by artist: Henry Rowley Bishop
  by artist: Giacomo Meyerbeer
  by artist: John Foster
  by artist: Julius Benedict
  by artist: Galli-Curci
  by artist: Homer Samuels
  in album: The Art Of Galli-Curci
    type: MusicAlbum
    date published: 2000-01-01
  genre: classical
  genre: opera
  isrc code: GBLGL0963495
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    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 0xcaf9178172da6bd0c671e50e76b30ff56d936bd3716a45b5162764ac9a060e40. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLGL0963495 — a six-check JSON result.
    date published: 2026-07-02T03:55:08Z
  audio: Home Sweet Home
    type: AudioObject
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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