No. 1, Widmung

Recording by Robert Schumann.

Recording identifiers

ISRC
HKI191016101
CopyrightID (CopyrightChains transaction hash)
0x9400a6b480fd69deb2d43f00d680506b047dc8c7bbbf6b5a8ea2a628e193c389
Copyright registration time
2026-07-31T18:33:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T18:48:12Z
Bitcoin block
960448
Canonical record hash
sha256:b20cebf74f6d074a34bd8eeb7d433f9ad0ac4c64d3652a88787d40f0c83ed1e9

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.