Spoon River II

Recording by Taku Sugimoto.

Recording identifiers

ISRC
QM4TW1546429
CopyrightID (CopyrightChains transaction hash)
0x3bb15c2e245fb945037fcafda6f01891652ebf41e108c14e429156f4581f1d7d
Copyright registration time
2026-07-07T23:37:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:3395ebb4a93b4d8585112004f38b55f2331ee9b5e2930f1c3d6047e11cad8c83

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.