Guitarra Triste

Recording by Katia Guerreiro.

Recording identifiers

ISRC
PTKG11100056
CopyrightID (CopyrightChains transaction hash)
0x38994641d6a141836857c15b32ca9da2102c162c376dfc9ef0291c58aabbe073
Copyright registration time
2026-06-10T22:06:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:7abf488edbde503fd43aa8db839d34138b36301e72eca2b471df72ab8781dd79

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.