Études d’Exécution Transcendente: No. 9. Ricordanza

Recording by Peter Ritzen.

Recording identifiers

ISRC
TWP011319658
CopyrightID (CopyrightChains transaction hash)
0xc57dee649eff1b088155cba5653ba871dbe9a15ef332651c695a23e4590042ce
Copyright registration time
2026-07-07T03:56:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:43e46486b49cfe89f20ab842de01070abfb8cd2514cea712ac74e34839741a28

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.