broker-v2.0: assessor image hash mismatch blocks all provers (gateway.beboundless.cloud SERVFAIL)

[Xanoutas]

Summary

The broker crashes every ~20 seconds due to an assessor image hash mismatch combined with an unreachable fallback IPFS gateway, making it impossible to earn any rewards.

Environment

• OS: Ubuntu 22.04
• GPU: RTX 4090
• Driver: 580
• Broker version: broker-v2.0
• Chain: Base Mainnet (8453)

Root Cause

The broker downloads the assessor image in two steps:

1. Default URL (signal-artifacts.beboundless.xyz/v3/assessor/assessor_guest.bin) — downloads successfully but serves hash 03831182a226b5f5a4d358704a9f9d0bcd4dc48e6e577dc7db84d94892024938
2. Contract fallback URL (gateway.beboundless.cloud/ipfs/bafybeiauvbhinz2yqm2vbgpl2njgoyaxhuwa2vbv6gts2ajcjfkw5m4ejq) — DNS SERVFAIL globally (verified with 8.8.8.8)

The broker expects hash 6c5a03c0785e91bc0ad0db486004116010680a03af4e712bcca3188e56694100 from the contract, but no accessible source serves this hash:

• signal-artifacts → 03831182...
• dweb.link (IPFS) → 70d4297...
• gateway.beboundless.cloud → SERVFAIL (DNS does not resolve globally)

Error

Error: Broker service failed
Caused by:
0: uploading assessor image
1: assessor image ID mismatch: expected 6c5a03c0..., got 03831182...
2: Failed to download image from contract
3: failed to lookup address information: Temporary failure in name resolution

Impact

• Broker cannot complete startup
• No orders can be locked or fulfilled
• Zero rewards earned despite GPU proving working correctly

Steps to Reproduce

1. Fresh install of broker-v2.0 on Base Mainnet
2. Run just prover
3. Broker crashes every ~20s with above error

Expected Behavior

The assessor image on signal-artifacts should match the hash registered in the contract, OR gateway.beboundless.cloud should resolve correctly.

[linear]

BM-3006