Pith Number

pith:US4JBFUH

pith:2019:US4JBFUHRV72OJZPCCVNCJAEA7

not attested not anchored not stored refs pending

Multi-step Entity-centric Information Retrieval for Multi-Hop Question Answering

Abhishek Singhal, Ameya Godbole, Andrew McCallum, Dilip Kavarthapu, Hamed Zamani, Manzil Zaheer, Mo Yu, Rajarshi Das, Tian Gao, Xiaoxiao Guo, Zhiyu Gong

arxiv:1909.07598 v1 · 2019-09-17 · 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{US4JBFUHRV72OJZPCCVNCJAEA7}

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	2026-07-05T00:05:15.806984Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4b89096878d7fa7272f10aad1240407e2f1b5c2b693f7d7122baa95a4d2b8ff

Aliases

arxiv: 1909.07598 · arxiv_version: 1909.07598v1 · doi: 10.48550/arxiv.1909.07598 · pith_short_12: US4JBFUHRV72 · pith_short_16: US4JBFUHRV72OJZP · pith_short_8: US4JBFUH

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/US4JBFUHRV72OJZPCCVNCJAEA7 \
  | 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: a4b89096878d7fa7272f10aad1240407e2f1b5c2b693f7d7122baa95a4d2b8ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1be3cf6b73d0b2110f858338cfc77a88437cf078a3f324e205088ba5e02bd6cc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-09-17T05:23:50Z",
    "title_canon_sha256": "c820001ee7565bfe17d3f722de4a3a198d807947ef7f92af385c1b94a1e6d7f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.07598",
    "kind": "arxiv",
    "version": 1
  }
}