Gustav Adolf II, Op. 49: II. Intermezzo

Recording by Hugo Alfvén.

Recording identifiers

ISRC
SEBAC0009060
CopyrightID (CopyrightChains transaction hash)
0xfa7548fba6a133755161a86d814e8aed05f77f48c6186549a6b32d163ca8244c
Copyright registration time
2026-01-28T21:05:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:be388d7711198bb1b9888389911d46d59c61f853c14e32e8f010e71352d01c66

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.