Rondo

Recording by Ignaz von Held.

Recording identifiers

ISRC
NLY331604798
CopyrightID (CopyrightChains transaction hash)
0x91a1e02dbfe94026c472498c7710d3319fa9cd66a35e5a5e75331225ff545a96
Copyright registration time
2026-07-31T20:56:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T21:25:57Z
Bitcoin block
960468
Canonical record hash
sha256:59ea5a386b6666bc3e66b766226564624d21c83036ffd2024e574ab9eeff9593

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.