Widmung

Recording by Robert Schumann.

Recording identifiers

ISRC
NLB150900602
CopyrightID (CopyrightChains transaction hash)
0x38a3cd6433480d165adaa3fc083660281183e8d9711afafe7837183e978d7a7c
Copyright registration time
2026-07-07T15:31:49+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:a997c81fc786f1c5978aae9cf5a1c67dba8f4af1ab60b23531d72daab4cb1706

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.