Preludes, Op. 28: No. 2, Lento in A Minor

Recording by Frédéric Chopin.

Recording identifiers

ISRC
GBAYC9101682
CopyrightID (CopyrightChains transaction hash)
0x6e0baf7ba70ff85730fd4ff1c0e73c7c90f85c47cc4fa538e8be8e1eb4f24bb1
Copyright registration time
2026-07-07T08:35:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:c8db1aaea7399c60546929b7f2186bf7008f469343d5d6136ff5038e6d821742

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.