Variations on a Theme by Haydn, Op. 56a: Var. 3. Con moto - Live

Recording by Johannes Brahms.

Recording identifiers

ISRC
DEN960930104
CopyrightID (CopyrightChains transaction hash)
0x189548ae5a6a49873cbc458ba301bccb337855facedca32d977652b1b82be52d
Copyright registration time
2026-06-12T01:33:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:8b0ed3c838321f5b1bbda3502a09ed0e148e89cd0cc22ed283157d4a70c74251

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.