Pith Number

pith:3ABSEYMD

pith:2026:3ABSEYMD2G2OANPBSIB7NNK42L

not attested not anchored not stored refs pending

LenGuard-GPC: Length Guarding with Guided-Prompt Consistency for Spatial Reasoning Reinforce Learning

Jing Tang, Xingjian Tao, Yiwei Wang, Yujun Cai

arxiv:2607.17243 v1 · 2026-07-19 · 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{3ABSEYMD2G2OANPBSIB7NNK42L}

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	2026-07-21T01:21:23.536971Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d803226183d1b4e035e19203f6b55cd2f975b424fb67131add09fd28d8266880

Aliases

arxiv: 2607.17243 · arxiv_version: 2607.17243v1 · doi: 10.48550/arxiv.2607.17243 · pith_short_12: 3ABSEYMD2G2O · pith_short_16: 3ABSEYMD2G2OANPB · pith_short_8: 3ABSEYMD

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/3ABSEYMD2G2OANPBSIB7NNK42L \
  | 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: d803226183d1b4e035e19203f6b55cd2f975b424fb67131add09fd28d8266880

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f686c93a0cf759cd07abbd685cce33bfe916ea9e6fdd0d4117e5b78da9a1e143",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-07-19T13:24:40Z",
    "title_canon_sha256": "2421f9e8bf6c5d9eff9fddb4358864349f8152888997e261801d2c5a3ed7b4b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.17243",
    "kind": "arxiv",
    "version": 1
  }
}