diff --git a/extensions/business/cybersec/red_mesh/pentester_api_01.py b/extensions/business/cybersec/red_mesh/pentester_api_01.py
index dbba0e31..082f59a0 100644
--- a/extensions/business/cybersec/red_mesh/pentester_api_01.py
+++ b/extensions/business/cybersec/red_mesh/pentester_api_01.py
@@ -30,8 +30,11 @@
 
 """
 
+import ipaddress
 import random
 
+from urllib.parse import urlparse
+
 from naeural_core.business.default.web_app.fast_api_web_app import FastApiWebAppPlugin as BasePlugin
 from .redmesh_utils import PentestLocalWorker  # Import PentestJob from separate module
 from .redmesh_llm_agent_mixin import _RedMeshLlmAgentMixin
@@ -42,7 +45,7 @@
   LLM_ANALYSIS_REMEDIATION_PLAN,
 )
 
-__VER__ = '0.8.2' 
+__VER__ = '0.9.0' 
 
 _CONFIG = {
   **BasePlugin.CONFIG,
@@ -82,6 +85,10 @@
   "LLM_AGENT_API_TIMEOUT": 120,  # Timeout in seconds for LLM API calls
   "LLM_AUTO_ANALYSIS_TYPE": "security_assessment",  # Default analysis type
 
+  # RedMesh attestation submission
+  "ATTESTATION_ENABLED": True,
+  "ATTESTATION_MIN_SECONDS_BETWEEN_SUBMITS": 86400,
+
   'VALIDATION_RULES': {
     **BasePlugin.CONFIG['VALIDATION_RULES'],
   },
@@ -108,6 +115,7 @@ class PentesterApi01Plugin(BasePlugin, _RedMeshLlmAgentMixin):
     List of job_ids that completed locally (used for status responses).
   """
   CONFIG = _CONFIG
+  REDMESH_ATTESTATION_DOMAIN = "0xced141225d43c56d8b224d12f0b9524a15dc86df0113c42ffa4bc859309e0d40"
 
 
   def on_init(self):
@@ -198,6 +206,130 @@ def Pd(self, s, *args, score=-1, **kwargs):
     return
 
 
+  def _attestation_get_tenant_private_key(self):
+    env_name = "R1EN_ATTESTATION_PRIVATE_KEY"
+    private_key = self.os_environ.get(env_name, None)
+    if private_key:
+      private_key = private_key.strip()
+    if not private_key:
+      return None
+    return private_key
+
+  @staticmethod
+  def _attestation_pack_cid_obfuscated(report_cid) -> str:
+    if not isinstance(report_cid, str) or len(report_cid.strip()) == 0:
+      return "0x" + ("00" * 10)
+    cid = report_cid.strip()
+    if len(cid) >= 10:
+      masked = cid[:5] + cid[-5:]
+    else:
+      masked = cid.ljust(10, "_")
+    safe = "".join(ch if 32 <= ord(ch) <= 126 else "_" for ch in masked)[:10]
+    data = safe.encode("ascii", errors="ignore")
+    if len(data) < 10:
+      data = data + (b"_" * (10 - len(data)))
+    return "0x" + data[:10].hex()
+
+  @staticmethod
+  def _attestation_extract_host(target):
+    if not isinstance(target, str):
+      return None
+    target = target.strip()
+    if not target:
+      return None
+    if "://" in target:
+      parsed = urlparse(target)
+      if parsed.hostname:
+        return parsed.hostname
+    host = target.split("/", 1)[0]
+    if host.count(":") == 1 and "." in host:
+      host = host.split(":", 1)[0]
+    return host
+
+  def _attestation_pack_ip_obfuscated(self, target) -> str:
+    host = self._attestation_extract_host(target)
+    if not host:
+      return "0x0000"
+    if ".." in host:
+      parts = host.split("..")
+      if len(parts) == 2 and all(part.isdigit() for part in parts):
+        first_octet = int(parts[0])
+        last_octet = int(parts[1])
+        if 0 <= first_octet <= 255 and 0 <= last_octet <= 255:
+          return f"0x{first_octet:02x}{last_octet:02x}"
+    try:
+      ip_obj = ipaddress.ip_address(host)
+    except Exception:
+      return "0x0000"
+    if ip_obj.version != 4:
+      return "0x0000"
+    octets = host.split(".")
+    first_octet = int(octets[0])
+    last_octet = int(octets[-1])
+    return f"0x{first_octet:02x}{last_octet:02x}"
+
+
+  def _submit_attestation(self, job_id: str, job_specs: dict, workers: dict):
+    if not self.cfg_attestation_enabled:
+      return None
+    tenant_private_key = self._attestation_get_tenant_private_key()
+    if tenant_private_key is None:
+      self.P(
+        "RedMesh attestation is enabled but tenant private key is missing. "
+        "Expected env var 'R1EN_ATTESTATION_PRIVATE_KEY'.",
+        color='y'
+      )
+      return None
+
+    run_mode = str(job_specs.get("run_mode", "SINGLEPASS")).upper()
+    test_mode = 1 if run_mode == "CONTINUOUS_MONITORING" else 0
+    node_count = len(workers) if isinstance(workers, dict) else 0
+    # TODO: replace placeholder score with proper RedMesh vulnerability scoring logic.
+    vulnerability_score = 100
+    target = job_specs.get("target")
+    report_cid = workers.get(self.ee_addr, {}).get("report_cid", None) #TODO: use the correct CID
+    node_eth_address = self.bc.eth_address
+    ip_obfuscated = self._attestation_pack_ip_obfuscated(target)
+    cid_obfuscated = self._attestation_pack_cid_obfuscated(report_cid)
+
+    tx_hash = self.bc.submit_attestation(
+      function_name="submitRedmeshAttestation",
+      function_args=[
+        test_mode,
+        node_count,
+        vulnerability_score,
+        ip_obfuscated,
+        cid_obfuscated,
+      ],
+      signature_types=["bytes32", "uint8", "uint16", "uint8", "bytes2", "bytes10"],
+      signature_values=[
+        self.REDMESH_ATTESTATION_DOMAIN,
+        test_mode,
+        node_count,
+        vulnerability_score,
+        ip_obfuscated,
+        cid_obfuscated,
+      ],
+      tx_private_key=tenant_private_key,
+    )
+
+    result = {
+      "job_id": job_id,
+      "tx_hash": tx_hash,
+      "test_mode": "C" if test_mode == 1 else "S",
+      "node_count": node_count,
+      "vulnerability_score": vulnerability_score,
+      "report_cid": report_cid,
+      "node_eth_address": node_eth_address,
+    }
+    self.P(
+      "Submitted RedMesh attestation for "
+      f"{job_id} (tx: {tx_hash}, node: {node_eth_address}, score: {vulnerability_score})",
+      color='g'
+    )
+    return result
+
+
   def __post_init(self):
     """
     Perform warmup: reconcile existing jobs in CStore, migrate legacy keys,
@@ -848,11 +980,38 @@ def _maybe_finalize_pass(self):
         # ═══════════════════════════════════════════════════
         # STATE: All peers completed current pass
         # ═══════════════════════════════════════════════════
-        pass_history.append({
+        now_ts = self.time()
+        pass_record = {
           "pass_nr": job_pass,
-          "completed_at": self.time(),
+          "completed_at": now_ts,
           "reports": {addr: w.get("report_cid") for addr, w in workers.items()}
-        })
+        }
+
+        should_submit_attestation = True
+        if run_mode == "CONTINUOUS_MONITORING":
+          last_attestation_at = job_specs.get("last_attestation_at")
+          min_interval = self.cfg_attestation_min_seconds_between_submits
+          if last_attestation_at is not None and now_ts - last_attestation_at < min_interval:
+            should_submit_attestation = False
+
+        if should_submit_attestation:
+          # Best-effort on-chain summary; failures must not block pass finalization.
+          try:
+            redmesh_attestation = self._submit_attestation(
+              job_id=job_id,
+              job_specs=job_specs,
+              workers=workers
+            )
+            if redmesh_attestation is not None:
+              pass_record["redmesh_attestation"] = redmesh_attestation
+              job_specs["last_attestation_at"] = now_ts
+          except Exception as exc:
+            self.P(
+              f"Failed to submit RedMesh attestation for job {job_id}: {exc}",
+              color='r'
+            )
+
+        pass_history.append(pass_record)
 
         # Handle SINGLEPASS - set FINALIZED and exit (no scheduling)
         if run_mode == "SINGLEPASS":