Alma Tanguera

Recording by Francisco Canaro.

Recording identifiers

ISRC
US6R21491419
CopyrightID (CopyrightChains transaction hash)
0x15ca0c65742f4014b5acd809079272ffe331bb3679c78d30a9b638cd31719b69
Copyright registration time
2026-07-30T09:33:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T09:57:33Z
Bitcoin block
960240
Canonical record hash
sha256:3d8fb9d4349988bb6ace10faa49da4f0ca1a1c39a33aeea54ccbd03311df3f74

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.