Na Invernada da Tamanca

Recording by Joca Martins.

Recording identifiers

ISRC
BRTMV2001006
CopyrightID (CopyrightChains transaction hash)
0x8bf4e71118b9242a5e1d03145b78a4e003cdfd5b7a5a6004371d7641f547b885
Copyright registration time
2026-06-23T14:43:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:5393004f63fa520418a7ce5babca578b076c1eaddf1791d2927bbea6e9a92a7f

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.