Concerto grosso: I. Adagio maestoso

Recording by Karl-Birger Blomdahl.

Recording identifiers

ISRC
QMFMF2110637
CopyrightID (CopyrightChains transaction hash)
0xce370369a58f7faf9ac1cb9c1d847517780523f5dbd46e08f880040955332a92
Copyright registration time
2026-01-28T21:00:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:ac7f9c73ccec0f5368a7fa0c0950f8e2952ffa88a6f4a2b75b7e0bde7ae73992

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.