Requiem in D Minor, K. 626: III. Seq. 6, Lacrimosa

Recording identifiers

ISRC

GBAYC8906374

Release date of the album this recording appears on

2016-11-22

CopyrightID (CopyrightChains transaction hash)

0x54a5e2ea89ddc6a9a28cf4ed8872ccaf7c51a895c4cf1cc5f76f3486b93f6ebd

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-08-01T04:30:37Z

Bitcoin block

960509

Canonical record hash

sha256:d5a92375deac7c9e6ae5c0d9fb443457c120c1afbe1c0ab90f6cce46c5981279

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC8906374

What this proof establishes

This recording was released in 2016, 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.