Colloquial Preludes: No. 5 in D Major

Recording by Sérgio Assad.

Recording identifiers

ISRC
ES25S2500005
CopyrightID (CopyrightChains transaction hash)
0x0e18efd422e7b6824528ec83318cd92c1c7418fd5151079e497768bb34b8b62d
Copyright registration time
2026-07-07T02:45:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:0890803b49375ee40b74be0093d626b80824823fe3d67a004dabc111f28533ac

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.