Praeludium and Allegro

Recording by Fritz Kreisler.

Recording identifiers

ISRC
CACA30880715
CopyrightID (CopyrightChains transaction hash)
0x5fc2ea14d81707e9dacbf9edaac685c3a328868899b03d71596260b5be8507de
Copyright registration time
2026-07-06T09:56:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T09:18:01Z
Bitcoin block
957020
Canonical record hash
sha256:96466d6341b0946f8d16a7449cc5e05eb53a0f4596e0d76ed578151855bdfcb1

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.