Pith Number

pith:FDLNE5U4

pith:2014:FDLNE5U42YGR5RXPK3O5NAUSDD

not attested not anchored not stored refs pending

Ripple Down Rules for Question Answering

Dai Quoc Nguyen, Dat Quoc Nguyen, Son Bao Pham

arxiv:1412.4160 v4 · 2014-12-12 · cs.CL · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FDLNE5U42YGR5RXPK3O5NAUSDD}

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	2026-05-18T00:50:07.183779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28d6d2769cd60d1ec6ef56ddd6829218e25f41e831f63225a37dbcbed01f0048

Aliases

arxiv: 1412.4160 · arxiv_version: 1412.4160v4 · doi: 10.48550/arxiv.1412.4160 · pith_short_12: FDLNE5U42YGR · pith_short_16: FDLNE5U42YGR5RXP · pith_short_8: FDLNE5U4

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/FDLNE5U42YGR5RXPK3O5NAUSDD \
  | 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: 28d6d2769cd60d1ec6ef56ddd6829218e25f41e831f63225a37dbcbed01f0048

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26045a35518b129bd70515a561c1710f8392ceb5f76742df4d470963bb0888ac",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2014-12-12T23:30:06Z",
    "title_canon_sha256": "8ae200bcd3e87678164561d540b8acd132aa9b616a7763482534613aa2192837"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.4160",
    "kind": "arxiv",
    "version": 4
  }
}