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

Recording by Robert Schumann.

Recording identifiers

ISRC
NLA507000560
CopyrightID (CopyrightChains transaction hash)
0x90754cda071ee202edc0a4c5db870017a26619e385debdfb9e905a50bfe32e1c
Copyright registration time
2026-06-20T18:55:55+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:5e776b5413fbbaebe5d6b9aeade8a45bd750d4e2f21fe300abe65c1e2da66bd2

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.