No. 2, Langsam

Recording by Robert Schumann.

Recording identifiers

ISRC
HKI191802810
CopyrightID (CopyrightChains transaction hash)
0x305aa92a8db54c4aab112307c2cc8eb409c5ae83734842eb4e81aaae840fa451

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T19:35:34Z
Bitcoin block
960138
Canonical record hash
sha256:b6198b6f578eea7ad01f9acee7876d82603c13ee3d427980e56a21b863696592

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.