Sonata a 6 in A Minor

Recording by Johann Michael Nicolai.

Recording identifiers

ISRC
FR50X1966503
CopyrightID (CopyrightChains transaction hash)
0xa017edddfa1852a231301a6d496803b9a835e99a898531a26cf5ce5a2e5d72ed
Copyright registration time
2026-07-07T08:01:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:9a2a5554d4862d1cdb7c40fb8e749ad41cdebdbdf71b0d11a84b0a1f1ad1642b

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.