In mir klingt ein Lied

Recording by Frédéric Chopin.

Recording identifiers

ISRC
CH0270830130
CopyrightID (CopyrightChains transaction hash)
0x4dfa6b3644d738c03b6ae29cdb9287ae49866c54e50e4b2079490f6d5bfb9c73
Copyright registration time
2026-07-07T15:10:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:891d0aaab42e2a90ed96a47fe5538b1ac03884ab9be9675b9997a0e5ad66ca93

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.