Maurerische Trauermusik in C Minor, K. 477 "Masonic Funeral Music"

Recording identifiers

ISRC

GBAYC8902336

Release date of the album this recording appears on

2021-11-27

CopyrightID (CopyrightChains transaction hash)

0x52caba7287a53ae5a644d75e5c236b5343ea57ccd1531dd4794be25ebf04e401

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T13:04:34Z

Bitcoin block

960403

Canonical record hash

sha256:59c384231a0eeccae3e10e313794988405bea985dd29c13327b31c17202c379f

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC8902336

What this proof establishes

This recording was released in 2021, 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.