La Cumparsita - Tango

Recording identifiers

ISRC

DEE378200120

Release date of the album this recording appears on

1982

CopyrightID (CopyrightChains transaction hash)

0x34a5bc21a93f3e4c50a0a8a39dc1ebc326053ee07e0752fb9aee3d6ad5f96db0

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T12:45:34Z

Bitcoin block

960258

Canonical record hash

sha256:040b34cf8c11fcaaedbb1575935837677aedef3828dfc5fc08d1f47734192dac

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEE378200120

What this proof establishes

This recording was released in 1982, 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.