Ciranda Do Mar

Recording identifiers

ISRC

BRBMG7300085

Release date of the album this recording appears on

1973

CopyrightID (CopyrightChains transaction hash)

0x02061a89056a91d605d8391741125d6301072de1c6ae4c4fdc3c46b524c18b4d

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-29T19:35:34Z

Bitcoin block

960138

Canonical record hash

sha256:3d62b35840b049519148a517fe037e2f64b69f45f29d81c3671ffc7aa3913b4d

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC BRBMG7300085

What this proof establishes

This recording was released in 1973, 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.