Preludes, Op. 28: No. 13, Lento

Recording by Frédéric Chopin.

Recording identifiers

ISRC
SEWDL6142664
CopyrightID (CopyrightChains transaction hash)
0x3d2ae574212ab99abd62f3362aa75e2a3ab787b4c46e3506e3623e5faeed73ab
Copyright registration time
2026-06-07T16:32:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:53:06Z
Bitcoin block
953515
Canonical record hash
sha256:99515381d2e6323b5c0788f2aa2455e39b2cd7101a65cdee06991406add10cbd

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.