Introduction, Theme and Variations in F Major, Op. 102: II. Adagio

Recording by Johann Nepomuk Hummel.

Recording identifiers

ISRC
GBAYC9005184
CopyrightID (CopyrightChains transaction hash)
0xdb7c043882996c509df95e3898e99a3a6020bf53d94aaa4acd764b5dde34d6d3
Copyright registration time
2026-07-31T10:48:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T12:24:41Z
Bitcoin block
960397
Canonical record hash
sha256:e987d08f8ce4676c7b3b46af6cc8a80bd91f87c85a5f27e08588821cffe0bb9a

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.