days gone by

Recording by Kensuke Ushio.

Recording identifiers

ISRC
USQX92003109
CopyrightID (CopyrightChains transaction hash)
0xd28a847a71cbcea77f659b53280c94c3aef388d3f86f97be7e902e67da6f5737
Copyright registration time
2026-07-06T08:11:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T18:39:05Z
Bitcoin block
957073
Canonical record hash
sha256:b5d7470b8f1e2c20de75e728b13a6d965665038880cc35252980190d3acdf701

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.