Dia De São Martinho

Recording identifiers

ISRC

PTUM10200142

Release date of the album this recording appears on

2011-12-02

CopyrightID (CopyrightChains transaction hash)

0x03f8e9eb30f3c212c4fb3f2471c3a0defa2821cf38925a0d0ce879835126e42a

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T12:24:41Z

Bitcoin block

960397

Canonical record hash

sha256:a534efe61c495a4a4f390cfeac318ff37d94b2bd2f5ab63770fa2d97747c1505

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC PTUM10200142

What this proof establishes

This recording was released in 2011, 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.