Pith Number

pith:WAJUT6FF

pith:2026:WAJUT6FFWVP4TKAFCE4YAM4LYC

not attested not anchored not stored refs pending

Heads, Not Backbones: Output Heads Dominate Architectures on Fat-Tailed Returns

Sichao He, Yansong Zhang

arxiv:2606.30037 v1 · 2026-06-29 · cs.LG · q-fin.RM · q-fin.ST

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WAJUT6FFWVP4TKAFCE4YAM4LYC}

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.

Receipt and verification

First computed	2026-06-30T02:17:47.062949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b01349f8a5b55fc9a805113980338bc0855c50e684b0867610172becfdc29ab6

Aliases

arxiv: 2606.30037 · arxiv_version: 2606.30037v1 · doi: 10.48550/arxiv.2606.30037 · pith_short_12: WAJUT6FFWVP4 · pith_short_16: WAJUT6FFWVP4TKAF · pith_short_8: WAJUT6FF

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/WAJUT6FFWVP4TKAFCE4YAM4LYC \
  | 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: b01349f8a5b55fc9a805113980338bc0855c50e684b0867610172becfdc29ab6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a9e665c029239b8ea20290b13c438054a4e06d63fec77edc10b605bbe1c4bb0",
    "cross_cats_sorted": [
      "q-fin.RM",
      "q-fin.ST"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-06-29T09:35:21Z",
    "title_canon_sha256": "6d22e18619f498caa3b6afd879556f453e1fc9d90312d480c926445aa9e156ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.30037",
    "kind": "arxiv",
    "version": 1
  }
}