四天

Recording by 是二哈ya.

Recording identifiers

ISRC
DGA062475424
CopyrightID (CopyrightChains transaction hash)
0x66abb2d1d2419c80f8e676c02ee074090410d12999806d2965f181b6c544bc33
Copyright registration time
2026-07-07T10:57:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:74425ca8c45edbcddeeb2a3861d10eaf3d012e39f573cb919266cebdf4af3fca

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.