Violin Concerto: III. Allegro giocoso

Recording by Karl-Birger Blomdahl.

Recording identifiers

ISRC
QMFMF2110636
CopyrightID (CopyrightChains transaction hash)
0xded1d624f8f9ab45b973b8ee1b17a83b0a63e8a9aefd4519465bb2374101ef8a
Copyright registration time
2026-01-28T21:29:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:488c1b916ce15ef00f9eeee6293d5246fbfb191be5e165ca35dd5a954ee08715

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.