Indigo March, Op. 349

Recording by Johann Strauss II.

Recording identifiers

ISRC
USSJ10817393
CopyrightID (CopyrightChains transaction hash)
0xc09aa17a1a5ea7e419abed697c4a59bcf7b937b841b3ed0351956730c7e36c1a
Copyright registration time
2026-07-07T01:33:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:008e3604ed5ad6692eb2e2acb2237ec29b45da9766c4729bcda4f8595a28b2da

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.