Variations on a Rococo Theme for Cello and Orchestra, Op. 33

Recording identifiers

ISRC

RUB091300002

CopyrightID (CopyrightChains transaction hash)

0x13a76bf6c3ce775f14ba244001b4808df3132b3995da6ee7e93d8d179d215c8d

Copyright registration time

2026-07-31T14:46:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:20:15Z

Bitcoin block

960418

Canonical record hash

sha256:37d85f05ad77ca810d179ea88c92184026ae44333d4dded68c6c237645cff961

• Verify the CopyrightID on CopyrightChains
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What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.