Pith Number

pith:3KLMKC6A

pith:2018:3KLMKC6AXDMWVWMZPL56ZQHLZ7

not attested not anchored not stored refs pending

Direct optimization of F-measure for retrieval-based personal question answering

Abdel-rahman Mohamed, Amanjit Kainth, Christopher Winestock, Rasool Fakoor, Ruhi Sarikaya, Siamak Shakeri

arxiv:1810.00679 v1 · 2018-09-28 · cs.IR · cs.CL · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3KLMKC6AXDMWVWMZPL56ZQHLZ7}

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	2026-05-18T00:04:25.122235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da96c50bc0b8d96ad9997afbecc0ebcffcc258e828131cb265be42b924d919d5

Aliases

arxiv: 1810.00679 · arxiv_version: 1810.00679v1 · doi: 10.48550/arxiv.1810.00679 · pith_short_12: 3KLMKC6AXDMW · pith_short_16: 3KLMKC6AXDMWVWMZ · pith_short_8: 3KLMKC6A

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/3KLMKC6AXDMWVWMZPL56ZQHLZ7 \
  | 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: da96c50bc0b8d96ad9997afbecc0ebcffcc258e828131cb265be42b924d919d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31bff417f4e1aa53084f734045a929a959dfd2a1483f54bbebd659dfdcd7dd7a",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2018-09-28T00:51:24Z",
    "title_canon_sha256": "da6ad26ae5680a04bccf69a3e3e5de77444415b27e14bb7bcb4b3c537664401f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.00679",
    "kind": "arxiv",
    "version": 1
  }
}