What Child is This Lullaby

Recording by Matthew Mayer.

Recording identifiers

ISRC
QZSYP2471112
CopyrightID (CopyrightChains transaction hash)
0x18e22705e174d3a810d8c1154d3ef6a91712c1324333fd38a37b56ea2e6daa6c
Copyright registration time
2026-07-31T02:55:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T03:15:04Z
Bitcoin block
960340
Canonical record hash
sha256:7c194f346482ec6959e99dffb96a08ff825b2d1d2f7726dee7f5e97f07486e14

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.