Preludio e Allegro: I. Preludio

Recording by Karl-Birger Blomdahl.

Recording identifiers

ISRC
QMFMF2110632
CopyrightID (CopyrightChains transaction hash)
0x6c3c70463710c870b9e7fe74ae55e84b49a1a7dfd47a6845497017368bc33519
Copyright registration time
2026-01-28T21:26:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:12de2cbe94f8debbda9a017a182cc5a4eaf96cdd4b3c08a41642eaa666ad964d

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.