Kreisleriana, Op. 16: 4. Sehr langsam

Recording by Robert Schumann.

Recording identifiers

ISRC
GBF077113084
CopyrightID (CopyrightChains transaction hash)
0x5f573c3f2cd6ec100438fb81c068f703f6b1d067119c8758b195e2271927a49d

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T18:48:12Z
Bitcoin block
960448
Canonical record hash
sha256:dbb617b949e8b94d382817eec4a814e4f4efd9202b55e4c887cba7131e58ae1a

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.