Symphonic Studies, Op. 13: Post. Var. III

Recording by Robert Schumann.

Recording identifiers

ISRC
NLA507000572
CopyrightID (CopyrightChains transaction hash)
0x03bc59976b47cf2d2adde5ad7400de1445613b68bbdb6eb22749b7e47da60e46
Copyright registration time
2026-06-25T06:56:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:3eee8730fc401c49a6e7fc9f039166c49109ccbd861585b3f298312f2903f870

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.