Canon in F

Recording by Wolfgang Amadeus Mozart.

Recording identifiers

ISRC
NLA508603832
CopyrightID (CopyrightChains transaction hash)
0xbc37b4c508974ada8fcb1ddf298f76c44ffa9455bb8434a09b2726a8386ea0d4

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T23:20:38Z
Bitcoin block
960163
Canonical record hash
sha256:ca0400f838e81a01ec3d64f1bde1c4616220618ee7ad73f40e0a5213a0e575a2

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.