去年那首情歌

Recording identifiers

ISRC

TWAN70660245

CopyrightID (CopyrightChains transaction hash)

0x202bae57ced2661438ff8d5b14a68400c989bb3e62f7b8c444a3b382ac47c1a4

Copyright registration time

2026-06-26T08:45:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:353d671671fb0522ea9f4437067db4bdb67122e76258d979a35ec330114f1aa4

• 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.