Ngày Chung Đôi

Recording identifiers

ISRC

VNR011042546

CopyrightID (CopyrightChains transaction hash)

0x79702499688c2a19d64a811c9f3688c96b7f2f4f806bdf6f2122394af6e5e657

Copyright registration time

2026-07-31T23:59:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-08-01T00:10:46Z

Bitcoin block

960485

Canonical record hash

sha256:a4fe7536f03ea3d5a72484ae77f0238e41714a3fefe5dc9d3064ebf25bfa32c6

• 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.