共产党来了苦变甜

Recording identifiers

ISRC

QZZ972367697

CopyrightID (CopyrightChains transaction hash)

0x0aa9f9300dcf6f1a43f8d13bc754e9affc17b1ed32826ad943dd7296fc370b08

Copyright registration time

2026-07-07T16:05:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T08:56:20Z

Bitcoin block

957145

Canonical record hash

sha256:87ab4922d4da6b7aa6e0cf89b0c55635160fd1d5dd3b14296ab7e2ba5ae95b8c

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.