Cantabile In B Flat

Recording by Frédéric Chopin.

Recording identifiers

ISRC
DEF059902370
CopyrightID (CopyrightChains transaction hash)
0x8154ad2fb921675c2733849f0fa63dd708b5a94adddb5620be90d43c37fb6e7f
Copyright registration time
2026-06-21T19:28:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:1ec909fcfc754a39c0e6fe4d1f1c2da6905d2e04d404a7ad7341e267956f96cf

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.