Piano Trio in E-flat major, Op. 70, No. 2 / III. Allegretto ma non troppo

Recording identifiers

ISRC

CALC41001356

Release date of the album this recording appears on

2011-10-25

CopyrightID (CopyrightChains transaction hash)

0x9228df596e808d04ccbf4d79163cd60983c728f5c523eb17ca44f7c11550ca90

Copyright registration time

2026-07-29T21:29:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T21:51:49Z

Bitcoin block

960150

Canonical record hash

sha256:991363ddfefb196c6364415c5c3d4fb6657d9954b7ba13927defb90e54e2a7cf

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC CALC41001356

What this proof establishes

This recording was released in 2011, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.