Piano Concerto No. 1 in E Minor, Op. 11: II. Larghetto

Recording by Frédéric Chopin.

Recording identifiers

ISRC
SEWDL0742809
CopyrightID (CopyrightChains transaction hash)
0x8df238b4ca96c0d51623c79f44d1c21d29af559770cae8d0c037c12b61d573dc
Copyright registration time
2026-07-31T03:07:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T03:15:04Z
Bitcoin block
960340
Canonical record hash
sha256:0ce6594ca171bbe72b39ca85ea718f94da0610ae52927511d1bcfa0232245f68

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.