Pith Number

pith:RWQ27DDF

pith:2025:RWQ27DDFWH5QKBP6EQDH4CELTW

not attested not anchored not stored refs pending

NeedleChain: Measuring Intact Context Comprehension Capability of Large Language Models

Heuiseok Lim, Hyeonseok Moon

arxiv:2507.22411 v3 · 2025-07-30 · cs.CL · 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{RWQ27DDFWH5QKBP6EQDH4CELTW}

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	2026-06-23T02:12:32.482114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8da1af8c65b1fb0505fe24067e088b9dbe76fc4a91f745334d114e4bd5debe7a

Aliases

arxiv: 2507.22411 · arxiv_version: 2507.22411v3 · doi: 10.48550/arxiv.2507.22411 · pith_short_12: RWQ27DDFWH5Q · pith_short_16: RWQ27DDFWH5QKBP6 · pith_short_8: RWQ27DDF

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/RWQ27DDFWH5QKBP6EQDH4CELTW \
  | 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: 8da1af8c65b1fb0505fe24067e088b9dbe76fc4a91f745334d114e4bd5debe7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "879fd55eac5c8785c0f53272e3c083a701510a567b38f26041436f7c5f084e4d",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-07-30T06:29:50Z",
    "title_canon_sha256": "7589f9f6ee5d94708ee02fb30af65ea7313475679f498126eebe3a4be3a651d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.22411",
    "kind": "arxiv",
    "version": 3
  }
}