Pith Number

pith:2RWILHIC

pith:2019:2RWILHICSSNEO56XBRBG5TIC7A

not attested not anchored not stored refs pending

Attentive History Selection for Conversational Question Answering

Cen Chen, Chen Qu, Liu Yang, Minghui Qiu, Mohit Iyyer, W. Bruce Croft, Yongfeng Zhang

arxiv:1908.09456 v1 · 2019-08-26 · 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{2RWILHICSSNEO56XBRBG5TIC7A}

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	2026-07-04T23:59:40.254274Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d46c859d02949a4777d70c426ecd02f8134fc12e2b84d1dc9b32c2d264df5759

Aliases

arxiv: 1908.09456 · arxiv_version: 1908.09456v1 · doi: 10.48550/arxiv.1908.09456 · pith_short_12: 2RWILHICSSNE · pith_short_16: 2RWILHICSSNEO56X · pith_short_8: 2RWILHIC

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/2RWILHICSSNEO56XBRBG5TIC7A \
  | 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: d46c859d02949a4777d70c426ecd02f8134fc12e2b84d1dc9b32c2d264df5759

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d210bb5707224ba558f4dd46d62adb539d05942215bad823d7d6f9140ad570bf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-08-26T03:39:51Z",
    "title_canon_sha256": "9c30c77a3fbd821a0122b702093c1ad4b14b065061c45da5ab2b3ca20b53f3ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.09456",
    "kind": "arxiv",
    "version": 1
  }
}