Sol de Maio

Recording identifiers

ISRC

BCKON2100065

Release date of the album this recording appears on

2021-10-29

CopyrightID (CopyrightChains transaction hash)

0x42e1c72cacef4155cde9c8d610c8f29e5eeab4e163b7c4b5a2884e8b8bb30ca0

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T11:30:20Z

Bitcoin block

960099

Canonical record hash

sha256:7cdefa1668c114f22d51422db6987968dfee0a5499bcbf7bfc1adb0f68033556

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC BCKON2100065

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.