Pith Number

pith:PGXYLBX7

pith:2018:PGXYLBX7ZRD3KH2HPZFTM6SMFS

not attested not anchored not stored refs pending

Xu: An Automated Query Expansion and Optimization Tool

Farhana Zulkernine, Haruna Isah, Morgan Gallant, Shahzad Khan

arxiv:1808.09353 v2 · 2018-08-28 · 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{PGXYLBX7ZRD3KH2HPZFTM6SMFS}

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	2026-05-17T23:40:08.931293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79af8586ffcc47b51f477e4b367a4c2c8b415e52a4c1c79f19355623c8e3fb7e

Aliases

arxiv: 1808.09353 · arxiv_version: 1808.09353v2 · doi: 10.48550/arxiv.1808.09353 · pith_short_12: PGXYLBX7ZRD3 · pith_short_16: PGXYLBX7ZRD3KH2H · pith_short_8: PGXYLBX7

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/PGXYLBX7ZRD3KH2HPZFTM6SMFS \
  | 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: 79af8586ffcc47b51f477e4b367a4c2c8b415e52a4c1c79f19355623c8e3fb7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb6d75e7a398f816752a0250c14bfe827c17e63c4abd0de4e4fe3c2d8fc5a631",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-08-28T15:18:14Z",
    "title_canon_sha256": "eff806bad0d43a8ad2537cb70f5673519305ec71d73485789d263f35559f39a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.09353",
    "kind": "arxiv",
    "version": 2
  }
}