Libertango

Recording identifiers

ISRC

QM6N22158653

Release date of the album this recording appears on

2021-10-01

CopyrightID (CopyrightChains transaction hash)

0xace459cc2080293d330c2107cb23a08f2b556c3dd4bf3d11ac61fd267240cf1b

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T15:59:18Z

Bitcoin block

960427

Canonical record hash

sha256:c2794156b99ade41be42debee057e3813c86f10cce2e76086ae06da0d22995dc

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC QM6N22158653

What this proof establishes

This recording was released in 2021, 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.