DOUBLE CALL

Recording by Nanase Aikawa.

Recording identifiers

ISRC
JPB602403383
CopyrightID (CopyrightChains transaction hash)
0xb55c693f0d6eeee53a3f83fc27e422eb24ce2339c2975a6ca2fd7ab237cada35
Copyright registration time
2026-07-30T18:56:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T19:11:09Z
Bitcoin block
960296
Canonical record hash
sha256:75db0e1aa7e2ed05b3406cd85a076f8439ecdd862efb55cfc5f08b0949ea5b0f

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.