Messa da Requiem, Dies Irae: X. Lacrymosa

Recording identifiers

ISRC

QM4TX1555595

CopyrightID (CopyrightChains transaction hash)

0x70a36e44c711f8f0a7b168e8a18d2e3a6865f2bb297e738ae6e2a0f23be3680a

Copyright registration time

2026-07-07T15:58:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:fdbc1dca4c6d55a8f38cb1e0079b17b8854ffeafc98cfa9db814eb80806129be

• 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.