CAIN-42 Evolution 4 DAG cluster evidence: dag-evolution4-2026-09-24
Disposable 4-container cluster (one host) from git 79b6cf2be07a, DAG layer + fast path on:
40 requests submitted to all four nodes' DAG queues were disseminated, availability-certified,
anchored through PBFT and ordered; one node was crash-restarted and rebuilt the identical ledger.
Source is not published; the bundle commits to it by git hash.

Verify (Python 3.8+, pip install cryptography, no CAIN code):
  BASE=https://cainstudio.online/proof/bundle/dag-evolution4-2026-09-24/    # or mcpgate.online/proof/bundle/dag-evolution4-2026-09-24/ or clawx.click/evidence/dag-evolution4-2026-09-24/
  curl -so verify_dag_bundle.py      "$BASE/verify_dag_bundle.py.txt"
  curl -so verify_pbft_qc_bundle.py  "$BASE/verify_pbft_qc_bundle.py.txt"
  curl -so DAG_CLUSTER_EVIDENCE.json "$BASE/DAG_CLUSTER_EVIDENCE.json"
  sha256sum DAG_CLUSTER_EVIDENCE.json     # expect 10c08dab4e70a7a5782b9aafe92e7c88e63038085cce3a8a143abb660797bc09
  python3 verify_dag_bundle.py DAG_CLUSTER_EVIDENCE.json     # expect ALL_CHECKS_PASSED: 18/18

It recomputes the deterministic order of every committed anchor and the ledger root from the
signed certificates and batches, and compares them with what each of the four nodes reported.
Not claimed: independent failure domains; that any live cluster runs the DAG layer; that MCPGate
consumes the AuthorizationCertificate; Narwhal/Bullshark compatibility; third-party review.