Pith Number

pith:UIVVDCQT

pith:2015:UIVVDCQTFMAGSQCZWZE2ND3HZW

not attested not anchored not stored refs pending

A Feature-based Classification Technique for Answering Multi-choice World History Questions

Jun Sun, Shuangyong Song, Yao Meng, Zhongguang Zheng

arxiv:1505.00863 v1 · 2015-05-05 · cs.IR · cs.AI · 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{UIVVDCQTFMAGSQCZWZE2ND3HZW}

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	2026-05-18T02:16:59.782577Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a22b518a132b00694059b649a68f67cdb123ed51c55eda7b0dc32aaec2976ead

Aliases

arxiv: 1505.00863 · arxiv_version: 1505.00863v1 · doi: 10.48550/arxiv.1505.00863 · pith_short_12: UIVVDCQTFMAG · pith_short_16: UIVVDCQTFMAGSQCZ · pith_short_8: UIVVDCQT

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/UIVVDCQTFMAGSQCZWZE2ND3HZW \
  | 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: a22b518a132b00694059b649a68f67cdb123ed51c55eda7b0dc32aaec2976ead

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ba94506a5d5e12d57962662ec3906dcfbfdc20dc76e62f599a538cd21a38d39",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2015-05-05T02:06:23Z",
    "title_canon_sha256": "8276125b484952513bdeac6c4aa01b0349c1f11bac725f3a36bf88132208d147"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.00863",
    "kind": "arxiv",
    "version": 1
  }
}