Say It Back

Recording by Matilda Mann.

Recording identifiers

ISRC
QMBZ92457373
CopyrightID (CopyrightChains transaction hash)
0xd066383821ff1a02f6341b00f92f5ebb0797be15e060e1d60dff4a4aaf966304
Copyright registration time
2026-06-04T16:47:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:db4f1ab25cf8924b6554b66793095b582a0a74f270db121c735e29f034bc71d9

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.