Symphony No. 2: I. Maestoso

Recording by Karl-Birger Blomdahl.

Recording identifiers

ISRC
QMFMF2110642
CopyrightID (CopyrightChains transaction hash)
0x3f7698539f59b164ded4d3f457fe5942fa8c464b6b865d9d812cba6d5afa7486
Copyright registration time
2026-01-28T20:59:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:c0c41f55e64c7e843e163ab201418561deacca7bfd57bd8bb5940a7ba9cd684a

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.