Ludus Tonalis: XVII. Interludium (Allegro molto)

Recording by Paul Hindemith.

Recording identifiers

ISRC
CHE271900089
CopyrightID (CopyrightChains transaction hash)
0xcea7bcc9bce5dedaaf77f14960ec494cb405cfc56ad7b72657b2534954ffce1a
Copyright registration time
2026-07-07T12:25:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:81de37be9ca97ff0885531c6623470d2bf2ca2787b64342f327bac8539a859d8

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.