Variações em ré maior

Recording by Carlos Paredes.

Recording identifiers

ISRC
PTVC16700001
CopyrightID (CopyrightChains transaction hash)
0x6c8c8fb3088eed728d104664d0e351db4ca312fb039ad25095ce4b9e1fd3d347
Copyright registration time
2026-06-09T22:08:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:46214dba65b6671d1b0252099c68917f1210d87d0652c8ec1ddeb8e08b7bc29e

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.