Một Ngày Không Có Anh & Nếu Một Ngày

Recording identifiers

ISRC

QM48F1047709

Release date of the album this recording appears on

2010-01-01

CopyrightID (CopyrightChains transaction hash)

0x2c1d7be249842ee981b7c1f4b6e64db0baee88a85f8dc8c7aaa1ff86e5950066

Copyright registration time

2026-07-31T02:17:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T02:51:48Z

Bitcoin block

960337

Canonical record hash

sha256:638e1265aed519d61494912f5c2a55c2cc000ef4fc2f114169f6d716dd74f5a8

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC QM48F1047709

What this proof establishes

This recording was released in 2010, 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.