Sonata 13a

Recording by Bellerofonte Castaldi.

Recording identifiers

ISRC
FR50X2306606
CopyrightID (CopyrightChains transaction hash)
0xdbe9b7a92375459a37c2d5b9099a1bb3888f5bc8a9ca520f0e925a1a64153b8f
Copyright registration time
2026-07-29T14:52:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T15:22:21Z
Bitcoin block
960121
Canonical record hash
sha256:9ca59eb55c7672bbb933c285c544c48b99cd3d75272d9051b5a51336a8b6e7d3

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.