Tristezze

Recording by Frédéric Chopin.

Recording identifiers

ISRC
NOAMM0300816
CopyrightID (CopyrightChains transaction hash)
0x56c89287c3e7ae33043592ef1517aba87f97864380ad1364b9bb4a60149c5a95
Copyright registration time
2026-07-06T07:32:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T18:50:38Z
Bitcoin block
957075
Canonical record hash
sha256:4eff88f77f130fec680943898ce8328db8acd484d93b329e74e4aae5b6953b5d

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.