Fantasia chromatica

Recording by Jan Pieterszoon Sweelinck.

Recording identifiers

ISRC
CZA163364069
CopyrightID (CopyrightChains transaction hash)
0xbd91161f6722641fa2b216cc450fdf91d01cdbfd1d0965091ae438a21422d352
Copyright registration time
2026-06-20T19:42:10+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:00189ceb075f1357c996246c4239928402cfbb63c02081ce5d01c7dd72634a19

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.