Que Tal

Recording by Leandro Borges.

Recording identifiers

ISRC
BX7LB2100009
CopyrightID (CopyrightChains transaction hash)
0x3648babdc84aa8690ba276721b0f3fed26dafbb59dfdd88728c1a6ac50932219
Copyright registration time
2026-06-05T08:48:32+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:9836127e6390a152183f1cf5555993e16cd026dfea30b6a3745b4327ad31c4e5

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.