Melancólico Buenos Aires

Recording by Astor Piazzolla.

Recording identifiers

ISRC
FRZ335744020
CopyrightID (CopyrightChains transaction hash)
0xe6446fa8d54860041ca350c25ef1f5166be8c0af9fa6d60c3fab814f6b2db5f8
Copyright registration time
2026-07-07T00:53:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:9d155cd7a1506c46e74d3b17b20c50378c1529cd74da531bf5bbe65899ca77e9

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.