Valsinha

Recording by Quarteto Em Cy.

Recording identifiers

ISRC
BRCID9100026
CopyrightID (CopyrightChains transaction hash)
0x5f6048cef8b815628e17ec314426c77dda9367d14919fd2c64dec2851e2b417a
Copyright registration time
2026-06-21T04:10:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:baddbd79ddc07e717221d9c761c162689a73a61d7c0cf9e6b262678953a252d5

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.