Two Melodies, Op. 5: No. 1

Recording by Ludomir Rózycki.

Recording identifiers

ISRC
PLA551800967
CopyrightID (CopyrightChains transaction hash)
0xa922e20e3e18b2dbaf0add50c92c43cc2f2181b547dc406e4931dba89d67ad68
Copyright registration time
2026-07-07T15:17:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:b8bad1270dfa748cc0868be6e06be6adacfb9e3d2ca2474881c768746615d2ca

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.