Colloquial Preludes: No. 6 in F Major

Recording by Sérgio Assad.

Recording identifiers

ISRC
ES25S2500006
CopyrightID (CopyrightChains transaction hash)
0xb54cf7602663ba770e4d483e01e04ef748bd2a6d9850390c39e922c236791cc9
Copyright registration time
2026-07-07T02:02:57+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:22ea8474107939a8c9715f96a9b3f9ce4f61d8df5bbb77c2640bbfaf6664abd2

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.