II. Romanza. Larghetto

Recording by Frédéric Chopin.

Recording identifiers

ISRC
HKI199231602
CopyrightID (CopyrightChains transaction hash)
0xb932f85f6662d793bceb417a30069aa8418084b8ebaa45b541adf4daf86f8bb4
Copyright registration time
2026-06-19T04:46:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:67450c6751872868c282ba703cdcee3d795547fcae730f2b375266a8e9e28b7e

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.