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

Recording by Robert Schumann.

Recording identifiers

ISRC
NLA507000568
CopyrightID (CopyrightChains transaction hash)
0xf00bad4c68944de05092a864220faff1b47a90d9f28cc6fa1db9281c6dd98dcc
Copyright registration time
2026-06-24T04:56:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:db9e5b2aa1f669471e7c0250246583d780f747b323b8d32aa851f26845dceeea

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.