Chamber Concerto

Recording by Karl-Birger Blomdahl.

Recording identifiers

ISRC
SEBAA1207607
CopyrightID (CopyrightChains transaction hash)
0xc5fba0f359283b9a114b5a6d5ab41626b0c45fe7ae1a4937bb1fdf007d884a0c
Copyright registration time
2026-01-28T20:12:57+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:a95cb9a7f4e3747e6db4719daea32d9992c44c7b0c746a23d4f2ed769709d832

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.