Pith Number

pith:6TXZNNKY

pith:2026:6TXZNNKYPUYI4TWJ72FWA7V2W6

not attested not anchored not stored refs pending

Self-Routing: Parameter-Free Expert Routing from Hidden States

Drew Wagner, Jama Hussein Mohamud, Mirco Ravanelli

arxiv:2604.00421 v2 · 2026-04-01 · cs.AI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6TXZNNKYPUYI4TWJ72FWA7V2W6}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

Routers Learn the Geometry of Their Experts: Geometric Coupling in Sparse Mixture-of-Experts

Receipt and verification

First computed	2026-07-08T01:18:28.070525Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4ef96b5587d308e4ec9fe8b607ebab791fe9b88d0c3dae99afaad4783014f48

Aliases

arxiv: 2604.00421 · arxiv_version: 2604.00421v2 · doi: 10.48550/arxiv.2604.00421 · pith_short_12: 6TXZNNKYPUYI · pith_short_16: 6TXZNNKYPUYI4TWJ · pith_short_8: 6TXZNNKY

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/6TXZNNKYPUYI4TWJ72FWA7V2W6 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: f4ef96b5587d308e4ec9fe8b607ebab791fe9b88d0c3dae99afaad4783014f48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3aac1cca31e0594d4c4f4b2d91ffd613ce2651f189c50f16a83d69cbca396965",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-04-01T03:05:20Z",
    "title_canon_sha256": "7954df84ef3c8749f91faca0a2e379afe5632a4ac5d1d785d9c14e29b2d69cc5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.00421",
    "kind": "arxiv",
    "version": 2
  }
}