Marriage of Figaro

Recording by Wolfgang Amadeus Mozart.

Recording identifiers

ISRC
SEWDL0741501
CopyrightID (CopyrightChains transaction hash)
0xfee6867c88e0ad3798f87d2e8a431edf9a30a9c3ed3029804c546786ca6a0ec3
Copyright registration time
2026-07-07T12:57:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:754a3afbabc8beca40f1f76431b0d3ad8fd2264e4755602c9d750b3d45a09b3b

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.