Olim Ta Txgá

Recording by Mário Marta.

Recording identifiers

ISRC
PT7HS1900120
Release date of the album this recording appears on
2021-12-02
CopyrightID (CopyrightChains transaction hash)
0x73441769d35089068123de14908b670459391aa86ecc026af58ef82307ec210f
Copyright registration time
2026-07-30T07:13:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T07:28:30Z
Bitcoin block
960220
Canonical record hash
sha256:365361e4bcfc17a41662cab3fffe1f9f3ceba5818df2080f5f1b95a9a42f2869

What this proof establishes

This recording was released in 2021, 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.