Concert overture

Recording by Karl-Birger Blomdahl.

Recording identifiers

ISRC
QMFMF2110641
CopyrightID (CopyrightChains transaction hash)
0x318775cb423c7b656967978bf1bc1ed5d705dede6f7d30fb84929e6f8b68acd2
Copyright registration time
2026-01-28T21:26:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:a0d6923bf705986b297084679ed17b9ffcff3343f521e24946027e4fb3593329

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.