Medley: Có Chi Đâu Mà Buồn / Đông Sang Thu Tàn

Recording identifiers

ISRC

VNA1M2402048

Release date of the album this recording appears on

2025-01-03

CopyrightID (CopyrightChains transaction hash)

0x8f3654fb76015613f7ff2a4f46295cfe4b0f9f916d67fc6640643904700e6db9

Copyright registration time

2026-07-07T18:20:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:22:41Z

Bitcoin block

957120

Canonical record hash

sha256:9c533faf0dca6dcce6adb0b37929f47fdabe9845783169dbdf1cc019ab1492b9

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC VNA1M2402048

What this proof establishes

This recording was released in 2025. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.