Pièces pour piano: No. 1, Prelúdio

Recording by António Fragoso.

Recording identifiers

ISRC
FRY672223733
CopyrightID (CopyrightChains transaction hash)
0xb7874bd9ff469d496b78209f76f08f59f2ca561bade727107cda9176517e3f2f
Copyright registration time
2026-07-07T16:17:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:2c9076a415488d7cddae96e35a17875d79ed20dc27b4310018b6b9c7758c6ea7

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.