友情

Recording by 余天.

Recording identifiers

ISRC
TWF130300123
CopyrightID (CopyrightChains transaction hash)
0xf14011ab4432289a3e8913294610befc49882e1e05909e04685a551e33ceb994
Copyright registration time
2026-07-07T20:13:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:39:04Z
Bitcoin block
957122
Canonical record hash
sha256:393e5b8b90bb153c18bcf082918500fb4f34e85c33c44578a77f6ed65599f17e

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.