Double Time

Recording by Taisei Iwasaki.

Recording identifiers

ISRC
JPT552200557
CopyrightID (CopyrightChains transaction hash)
0x12f38614bb83d7ea9be4e3621fa33b6b20481dcc405cef2eecdf06b78c07f184
Copyright registration time
2026-07-07T06:08:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:90aed2c026150d5f1063e6f8c5ad9ae4ba425875500105486578da263ef99be2

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.