北京 把青春还给我

Recording identifiers

ISRC

CNZ642000031

Release date of the album this recording appears on

2020-07-08

CopyrightID (CopyrightChains transaction hash)

0x81c44294decc2d896accd2c662af503f10d0346f76b4d62f63efc44dc11dc240

Copyright registration time

2026-07-31T16:54:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T17:29:52Z

Bitcoin block

960441

Canonical record hash

sha256:0e35216c6a3ebe20847118ab6a4e869dfd42763198f8f4289ffc0c0b31e51120

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC CNZ642000031

What this proof establishes

This recording was released in 2020, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.