Recitativo e Arioso

Recording by Witold Lutosławski.

Recording identifiers

ISRC
PLA551800970
CopyrightID (CopyrightChains transaction hash)
0xbebb55c949df91b04c501321751c5fff569c45d6dc139c813b2f02a97cfcbd0a
Copyright registration time
2026-07-07T12:19:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:f1c6707ff8f389f42b2aeda640b578e3ddf12e79f29a34476a8195e755a11654

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.