No. 2, Langsam

Recording by Robert Schumann.

Recording identifiers

ISRC
HKI191802810
CopyrightID (CopyrightChains transaction hash)
0x305aa92a8db54c4aab112307c2cc8eb409c5ae83734842eb4e81aaae840fa451

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T15:59:18Z
Bitcoin block
960427
Canonical record hash
sha256:63823daa70322014f03ee6a912d60292e972962708b3e8bf6d6782a08ac65b82

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.