Réquiem

Recording identifiers

ISRC

QZNJZ2441242

CopyrightID (CopyrightChains transaction hash)

0x9ae75156ecec87f77ec66ba4bf1800b14ff21b8aa111831cea51bd9b9e95d833

Copyright registration time

2026-06-05T23:46:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T12:47:07Z

Bitcoin block

953513

Canonical record hash

sha256:68da2bdbd15a4e81b0b40e2cc49e755b7f4b73323e4b4208f3e589b136814af9

• 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.