Sau Lưng Anh Có Ai Kìa - winter version

Recording identifiers

ISRC

DGA062287031

CopyrightID (CopyrightChains transaction hash)

0x5c1f42e882b92f1bfd1cffec210c66d3413ef4b54921c759210b6b8784268eda

Copyright registration time

2026-06-18T23:17:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:30:09Z

Bitcoin block

956302

Canonical record hash

sha256:ea5ae5750c0724154535ba5a6ce3e62d721169a707b39ddf0245016a91a195b7

• 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.