Requiem in D Minor, K. 626: I. Requiem æternam (Introitus)

Recording identifiers

ISRC

FRZ131401010

Release date of the album this recording appears on

2014-09-29

CopyrightID (CopyrightChains transaction hash)

0x6d23026bae172d5e116bf1eb068b464cf35f22c3b4526afeea79cad0b3f2d824

Copyright registration time

2026-06-11T12:18:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T13:32:09Z

Bitcoin block

953520

Canonical record hash

sha256:671c82e8d3387ede33c728b54c9d2a86da5b5ca81af4d431b628cdc36f87933b

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC FRZ131401010

What this proof establishes

This recording was released in 2014, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.