First Time

Recording by 青木沙也果.

Recording identifiers

ISRC
KRMIM2410784
CopyrightID (CopyrightChains transaction hash)
0x89d3ecc2b823704abe2264cf30f8c608100c2a72a140c7a03cf4537880ac8ba1
Copyright registration time
2026-07-07T03:43:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:90de6675a95191cb0c674377cce2b539a908de0c3a7f15773fd1d2ef96ca60b7

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.