Past mystery

Recording by Arc System Works.

Recording identifiers

ISRC
TCJPO2103108
CopyrightID (CopyrightChains transaction hash)
0x61c69694e220984843f36d917c794b6eea08b6a12da324429ac5fe26dd6c1aa0
Copyright registration time
2026-07-07T20:29:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:f4abc7a8a234928af5546426ec0d9b714cb3235a0b47557a4109cdaf76606b3b

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.