E=Mc²

Recording identifiers

ISRC

QZHZ52015350

CopyrightID (CopyrightChains transaction hash)

0x72dfad3d845199d2c80f2054f1eb190f62de5c08ce7bee446680c4bfda32cce0

Copyright registration time

2026-06-04T10:00:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T13:32:09Z

Bitcoin block

953520

Canonical record hash

sha256:26c25124afa9c2fe6f86562b9f393bf6051310e53eeed07a8885d80d80a58e81

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.