Violin Concerto: II. Andante molto tranquillo

Recording by Karl-Birger Blomdahl.

Recording identifiers

ISRC
QMFMF2110635
CopyrightID (CopyrightChains transaction hash)
0x0e8df44e81d5f9d66c9e4a5e3e85d7ebd0b7fac73f7cbeea7c7150c743805694
Copyright registration time
2026-01-28T21:24:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:df0de4fbe480c1ac300f70818c684b64938c77b8acd616b4a31e35f84fd70f1a

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.