6 Impromptus, Op. 5: Impromptu VI

Recording by Jean Sibelius.

Recording identifiers

ISRC
USSM11703791
CopyrightID (CopyrightChains transaction hash)
0x3ad246b02d3083d45725e7993cc342726dc9e113d0dd0f46cc17f26583839ef5
Copyright registration time
2026-06-04T07:54:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T15:41:10Z
Bitcoin block
953528
Canonical record hash
sha256:cacb0df2f556685f4a2034b51d23ae1fb77785d96c0ac9a486ff15d067a1e6f4

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.