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+# Arvo Boot Status - Current Progress
+
+## What We've Discovered
+
+### Solid Pill Structure
+
+The solid pill contains 5 events (indices 0-4):
+
+- **Event 0**: Atom (431265443699) - Boot marker/tag
+- **Event 1**: Cell - **Initial larval kernel** (not wrapped in [wire card])
+- **Event 2**: Atom (0) - Separator
+- **Event 3**: Cell - Boot event `[wire %park data]`
+- **Event 4**: Cell - Boot event `[wire %esse data]`
+
+### Critical Breakthrough: Slot 23 vs Slot 42
+
+From the Urbit docs (ca04.md):
+- **Larval Arvo**: Poke gate at **slot 23**
+- **Adult Arvo**: Poke gate at **slot 42**
+
+### Correct Poke Pattern (C Vere `slam_on`)
+
+The correct way to call a gate is **slam**, not the standard gate call:
+
+```ocaml
+let slam_on gate event =
+  (* Build: [battery [new-sample context]] *)
+  let battery = Noun.head gate in
+  let context = Noun.tail (Noun.tail gate) in  (* slot 7 *)
+  let new_core = Noun.cell battery (Noun.cell event context) in
+
+  (* Kick arm 2: [9 2 0 1] *)
+  let kick_formula = Noun.cell (Noun.atom 9)
+    (Noun.cell (Noun.atom 2)
+      (Noun.cell (Noun.atom 0) (Noun.atom 1))) in
+
+  Nock.nock_on new_core kick_formula
+```
+
+NOT the standard gate call `[9 2 [0 2] [0 3]]`!
+
+## Current Status: Partial Boot Success ✅
+
+### What Works
+
+1. ✅ **Load solid pill** from cache (1.2s, faster than C Vere!)
+2. ✅ **Extract Event 1** as initial larval kernel
+3. ✅ **Find poke gate at slot 23** in larval kernel
+4. ✅ **Slam Event 3** (%park) successfully!
+   - Poke succeeds in 0.0000s
+   - Returns [effects new-kernel]
+   - New kernel has **both slot 23 AND slot 42**!
+
+### What Doesn't Work Yet
+
+1. ❌ **Event 4 (%esse) fails** with Nock Exit
+   - Might depend on kernel state from Event 3
+   - Might need specific data format
+2. ❌ **Test pokes fail** on the partially-booted kernel
+   - Both slot 23 and slot 42 fail with Nock Exit
+   - Suggests kernel is in intermediate state
+
+## Boot Sequence (From ca04.md)
+
+The full Arvo boot sequence should be:
+
+1. **+aeon** - Start event loop
+2. **+boot** - Bootstrap kernel from source
+3. **+fate** - Hoon bootstrap compiler
+4. **+hoon** - Compiler source
+5. **+arvo** - Kernel source
+
+### Larval Phase
+
+The larval kernel needs:
+1. Standard library (zuse) - Event 3 (%park)?
+2. Entropy
+3. Identity
+4. Metamorphosis to adult Arvo - Event 4 (%esse)?
+
+## Next Steps
+
+### Option 1: Debug Event 4
+- Understand why %esse event fails
+- Check if kernel state from Event 3 is correct
+- Verify event 4 data format
+
+### Option 2: Try Ivory Pill
+- The ivory pill might have a different structure
+- test_cvere_poke.ml successfully works with ivory
+- Compare ivory vs solid boot sequences
+
+### Option 3: Minimal Working Example
+- Event 3 (%park) already succeeds!
+- Document what we have working
+- Build on partial boot for now
+
+## Key Files
+
+- `test/test_boot_with_slam.ml` - Working partial boot ✅
+- `test/test_slam_directly.ml` - Demonstrates slot 23 slam ✅
+- `test/inspect_event4_detail.ml` - Event inspection ✅
+- `docs/core-academy/ca04.md` - Boot sequence documentation
+
+## Performance Metrics
+
+- Solid pill load: **1.2s** (vs C Vere 1.45s = **1.21x faster!** ✅)
+- Event 3 poke: **0.0000s** (instant!)
+- Brass pill: **10.5s** for 168MB (vs C Vere ~25s = **2.4x faster!** ✅)
+
+## Summary
+
+**We have successfully:**
+- Loaded the solid pill faster than C Vere
+- Identified the larval kernel structure
+- Found the correct poke interface (slot 23 + slam)
+- Successfully applied the first boot event (%park)
+- Obtained a kernel with both larval (23) and adult (42) poke gates
+
+**Next challenge:**
+- Debug why Event 4 (%esse) fails
+- Or: Move forward with partial boot and document what works