Pith Number

pith:HG2JUZ7N

pith:2026:HG2JUZ7NGXHFE2Y5WZAFQMHBZK

not attested not anchored not stored refs pending

Trace Only What You Need: Structure-Aware On-Demand Hypergraph Memory for Long-Document Question Answering

Chen Chen, Wenjie Zhang, Xiangjun Zai, Xiaoyang Wang, Xingyu Tan

arxiv:2606.10921 v1 · 2026-06-09 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HG2JUZ7NGXHFE2Y5WZAFQMHBZK}

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	2026-06-10T01:10:48.237656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39b49a67ed35ce526b1db6405830e1ca9b43f9374b97646ac8f758a9e7d8426a

Aliases

arxiv: 2606.10921 · arxiv_version: 2606.10921v1 · doi: 10.48550/arxiv.2606.10921 · pith_short_12: HG2JUZ7NGXHF · pith_short_16: HG2JUZ7NGXHFE2Y5 · pith_short_8: HG2JUZ7N

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/HG2JUZ7NGXHFE2Y5WZAFQMHBZK \
  | 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: 39b49a67ed35ce526b1db6405830e1ca9b43f9374b97646ac8f758a9e7d8426a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "543d6732f173f21e42f69d0375b6ceb28aa2a4b5bc465b9595e564c671714001",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-06-09T14:29:06Z",
    "title_canon_sha256": "03e4933bd2b011fb97cf3b1e581a6aef161c30ac34b149ac5dacfa55a5de7f0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.10921",
    "kind": "arxiv",
    "version": 1
  }
}