La Calle 92

Recording by Astor Piazzolla.

Recording identifiers

ISRC
USNO10060101
CopyrightID (CopyrightChains transaction hash)
0xfd16990dab7f84fb8a1857a1d97361ae307616c8f6efeb854c5a1e933defe38e
Copyright registration time
2026-07-06T19:32:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:7ae4a052d5ba3ee7455f1520959bb93a82ed650fbca3870660908c82aafcb34e

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.