Brahms' Lullaby

Recording by Matthew Mayer.

Recording identifiers

ISRC
QM9AA1629847
CopyrightID (CopyrightChains transaction hash)
0x0374afbfd43f7463fe05c5bbdaef5c6a7909ae05ac292c30148af41d98ab5296
Copyright registration time
2026-06-21T19:03:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:a6f56b3321f13060b9d2e65aab4a4fbb7d268fac1280efb58fd44b370154285a

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.