Gustav Adolf II, Op. 49: II. Intermezzo

Recording by Hugo Alfvén.

Recording identifiers

ISRC
SEBAA1204102
CopyrightID (CopyrightChains transaction hash)
0xffd5d30b98e6115ecd26c77879c6bd8e0d1bf212d134b93734dd3df2f33368f2
Copyright registration time
2026-01-28T20:47:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:1cf171adfd4ae62d01278e1b276315b229e3d67f654ed7dfcaf9beabf60067ab

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.