A Jangada Voltou So´

Recording by Dorival Caymmi.

Recording identifiers

ISRC
AUXN22088608
Release date of the album this recording appears on
2020-10-01
CopyrightID (CopyrightChains transaction hash)
0x3d36a8138a40d5952597bd8f216d6b5e9d15c005893f375b75e65db846cd0d4a
Copyright registration time
2026-07-31T13:03:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T13:26:30Z
Bitcoin block
960407
Canonical record hash
sha256:71e640ddf90fb91809106c4c131064fb04a3473b774011037989923367431d27

What this proof establishes

This recording was released in 2020, 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.