Secret Summer

Recording by 開歌-かいか-.

Recording identifiers

ISRC
JPE872204323
CopyrightID (CopyrightChains transaction hash)
0x75fffa60ddc1da3a1f73fcc1803c4a3e7edd285b68cb5bd177b40ead44577aa1
Copyright registration time
2026-07-07T07:54:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:683c61339638b9a08a0935acaca96fc00b9cb60d27c0613b36ce868c1cf3b9b6

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.