在不在

Recording by Jeff Chang.

Recording identifiers

ISRC
TWB532010002
CopyrightID (CopyrightChains transaction hash)
0x07a8107d96acd57c0c2946e888297c7b5cf566a8551737e4654e13d39d55f1ea
Copyright registration time
2026-06-23T14:23:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:651a9761992d831c85f945fdcde43c4b4f971345ffc4c087a775f2a53bc2c042

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.