Una Sonrisa, una Lágrima

Recording by Fernando De Madariaga.

Recording identifiers

ISRC
ARF039800112
CopyrightID (CopyrightChains transaction hash)
0x0a73f4d9121970ee0e05848d262fe62c1e4adb7627b80da0e68bb1596469d560
Copyright registration time
2026-06-05T19:05:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:4f4ff2ba9b59af01970f8f634ba9069bcf88efb1d98573cd6733fdafcabc415a

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.