Piano Concerto No. 1 in E minor, Op. 11: II. Romance-larghetto

Recording by Frédéric Chopin.

Recording identifiers

ISRC
USSJ17000758
Release date of the album this recording appears on
2009-01-01
CopyrightID (CopyrightChains transaction hash)
0xf0552f4cba4abe92c6d2163cd584ed822b8102b74d9ac1919665899049e9a8b2
Copyright registration time
2026-07-07T14:56:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:dc2bc815232f251a035172263b48d9b8f0f1f3af965c973c383ab822742610f3

What this proof establishes

This recording was released in 2009, 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.