Sequentia: Confutatis (Requiem)

Recording by Wolfgang Amadeus Mozart.

Recording identifiers

ISRC
NLA508202307
CopyrightID (CopyrightChains transaction hash)
0x7d046bc767cc838e3e653554304340350eb91fd295ad97bc05e86d6b417029be
Copyright registration time
2026-07-07T00:19:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:7f062540336d339802141703bd349f3ef88ea97fbeb9663bd02c296479fca751

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.