Pith Number

pith:RKCMNGGY

pith:2026:RKCMNGGYJTIZRVUM5SEMFUU2I7

not attested not anchored not stored refs pending

XGrammar-2: Efficient Dynamic Structured Generation Engine for Agentic LLMs

Alexander Jiang, Guanjie Wang, Linzhang Li, Tianqi Chen, Yixin Dong, Ziyi Xu

arxiv:2601.04426 v3 · 2026-01-07 · 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{RKCMNGGYJTIZRVUM5SEMFUU2I7}

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

2 papers in Pith

VibeServe: Can AI Agents Build Bespoke LLM Serving Systems?

Schema Key Wording as an Instruction Channel in Structured Generation under Constrained Decoding

Receipt and verification

First computed	2026-05-27T01:04:54.595781Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a84c698d84cd198d68cec88c2d29a47d3a6d4ef9464af53ab976c0de028fadb

Aliases

arxiv: 2601.04426 · arxiv_version: 2601.04426v3 · doi: 10.48550/arxiv.2601.04426 · pith_short_12: RKCMNGGYJTIZ · pith_short_16: RKCMNGGYJTIZRVUM · pith_short_8: RKCMNGGY

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/RKCMNGGYJTIZRVUM5SEMFUU2I7 \
  | 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: 8a84c698d84cd198d68cec88c2d29a47d3a6d4ef9464af53ab976c0de028fadb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ef9acfc5540c70310a65e0bf55163688dc29c825bd966a0d1b50657a5d3ef11",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-01-07T22:18:51Z",
    "title_canon_sha256": "f5d4b06b2a1be3ba1a86efa7c50872cc60d2adcc941500b804f3d6838b01c5be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.04426",
    "kind": "arxiv",
    "version": 3
  }
}