A Portugueza (Portugal)

Recording by Alfredo Keil.

Recording identifiers

ISRC
FINDE9900083
Release date of the album this recording appears on
2000-01-01
CopyrightID (CopyrightChains transaction hash)
0x468808bb660d50795277ff61a782e8ea0f7a1112253786c9e2d8384463e7fb5d
Copyright registration time
2026-07-29T10:47:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T11:07:37Z
Bitcoin block
960095
Canonical record hash
sha256:6227947ccd341393b2f2668d1ba0e475a6a17d3e7192b0a031e7c22485a4bb41

What this proof establishes

This recording was released in 2000, 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.