Berta Filava

Recording by Natalino Otto.

Recording identifiers

ISRC
ES5832500236
CopyrightID (CopyrightChains transaction hash)
0x3c3ddad0e22b2a8899bc833a3237e0927d74a2bb02b7d411867fb415a41470a7
Copyright registration time
2026-07-07T22:54:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:25eebbabc6c5b6a93d0df61aa31cc4db10d77e29ff0e6de8b584af62836d4ef1

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.