Symphonic Studies, Op. 13: Var. II. Marcato il canto

Recording by Robert Schumann.

Recording identifiers

ISRC
NLA507000561
CopyrightID (CopyrightChains transaction hash)
0xf05d681fd59e1d0b420b2af31c5e6517b8e31f73cf8ff55ecbac1ebd2f03ae9c
Copyright registration time
2026-06-21T17:41:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:d0704ec3f329e55d04cf833530fa85167d703f17bc3b3cd86b451c15ad7eb2a5

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.