Indigo, Op. 349: Marsch

Recording by Polish State Philharmonic Orchestra, Katowice.

Recording identifiers

ISRC
HKI198990103
CopyrightID (CopyrightChains transaction hash)
0xbf3d2c3122f4b2a96575141fdd9c9fd8ac99adbfd954ed418c98ebf2501f897f
Copyright registration time
2026-06-09T16:18:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:46553aace98d7d89ba6861566125ef4cba862a9aba095c0a658d7b500e57c58a

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.