Spanisches Liederspiel, Op. 74: III. Liebesgram

Recording by Robert Schumann.

Recording identifiers

ISRC
FRZ140913030
CopyrightID (CopyrightChains transaction hash)
0xb1b355a7b64e27df370c22f9b519af700b7aacba90ce612d848136c3316842d3
Copyright registration time
2026-07-07T20:23:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:1c7c635a8de9e3a44999fcc74d40591ba210d1b2250fd9888df3c82fdba5c5e5

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.