Pith Number

pith:IU3E5S2I

pith:2026:IU3E5S2I4MS4IEATZ5GAL53GZG

not attested not anchored not stored refs pending

Finding What Matters: Anchoring Context Knowledge with Evolving Indices for Iterative Retrieval

Cheng Yang, Maosong Sun, Minghe Yu, Mingyan Wu, Shuo Wang, Xinze Li, Yukun Yan, Yuqing Lan, Zhenghao Liu, Zheni Zeng

arxiv:2601.16462 v2 · 2026-01-23 · 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{IU3E5S2I4MS4IEATZ5GAL53GZG}

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	2026-06-02T02:04:13.388360Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45364ecb48e325c41013cf4c05f766c993a2d70afb03ccd48fd39bd6780c565e

Aliases

arxiv: 2601.16462 · arxiv_version: 2601.16462v2 · doi: 10.48550/arxiv.2601.16462 · pith_short_12: IU3E5S2I4MS4 · pith_short_16: IU3E5S2I4MS4IEAT · pith_short_8: IU3E5S2I

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/IU3E5S2I4MS4IEATZ5GAL53GZG \
  | 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: 45364ecb48e325c41013cf4c05f766c993a2d70afb03ccd48fd39bd6780c565e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1571a886defba0e9d222a96b7a580fb1c127b3091ddb57ec7960f538bf84b42",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-01-23T05:41:05Z",
    "title_canon_sha256": "a166a1f52d4cfbead9895ace31f76caf8cd844af76b5332c15494008aca48741"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.16462",
    "kind": "arxiv",
    "version": 2
  }
}