A Luz da Sombra

Recording by Carlos Bica.

Recording identifiers

ISRC
PTNF11900101
CopyrightID (CopyrightChains transaction hash)
0xf1fc77ec296fc6ebcf7edd0a32f7d38b6b02afb293c4139fc6f9ded96783a6c7
Copyright registration time
2026-08-01T04:11:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-08-01T04:52:22Z
Bitcoin block
960513
Canonical record hash
sha256:b438120fa0335df019d02442a0d554c0e2050c161a4494f46fbde2aaf6d55ba0

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.