ioτa Launches 8-Layer Model Run, Fixes macOS Attestation

Subnet 9 deployed new model version 4.0.5.7-tah with 8-layer architecture. A KeySigner attestation failure on macOS was resolved by removing the quarantine attribute that caused app translocation; the issue did not affect most users. New infrastructure supports significantly larger parameter models and more concurrent runs than the previous 3-layer setup tested 1.5 months ago.

• •Launched 8-layer training run (version 4.0.5.7-tah)
• •macOS attestation fix: strip quarantine attribute with xattr
• •New architecture tested to scale beyond prior 5-6 concurrent runs
• •Supports larger models; prior max was 256 miners per run at 3 layers