美好的昨天

Recording by Hu Xia.

Recording identifiers

ISRC
TWA471503010
CopyrightID (CopyrightChains transaction hash)
0x2b649b7c908ed5b56d0f020f8dcc472b581308a7c3ef2f5a97e831d6a88416f7
Copyright registration time
2026-06-24T18:46:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T05:09:12Z
Bitcoin block
956312
Canonical record hash
sha256:d9d01104c191f33f706bda473bf04737afd02e03bed0247021554c97c11d5bf8

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.