Waltz No. 11 in G-Flat Major, Op. 70 No. 1

Recording by Frédéric Chopin.

Recording identifiers

ISRC
GBAJY0836011
Release date of the album this recording appears on
2010-01-01
CopyrightID (CopyrightChains transaction hash)
0x4ba0f5547526e4540b8fc467c5e57ae530cbb3e743aa212e9fd13512b77772f1

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T23:30:38Z
Bitcoin block
960478
Canonical record hash
sha256:890b4616b7b55e3052e1d507c596d1d5b348ab7e1eb00524251f6641742b85a4

What this proof establishes

This recording was released in 2010, 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.