Requiem in D Minor, K. 626: Requiem: Introitus - Kyrie: Adagio

Recording identifiers

ISRC

DES380811001

Release date of the album this recording appears on

1964

CopyrightID (CopyrightChains transaction hash)

0x123a87e31c7253ba6cd287b3f3911b2d0ceee20f36a003ac1c1ded7cbb503bdf

Copyright registration time

2026-07-06T03:00:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-06T06:56:49Z

Bitcoin block

956889

Canonical record hash

sha256:46b211b648892e90aa019f117f2320a38cafb63b2c18a8fce40a9e27fe29fba0

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DES380811001

What this proof establishes

This recording was released in 1964, 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.