Pith Number

pith:E3HTV6UA

pith:2019:E3HTV6UAPZJZBZM7XFNVW6ZON3

not attested not anchored not stored refs pending

Multi-passage BERT: A Globally Normalized BERT Model for Open-domain Question Answering

Bing Xiang, Patrick Ng, Ramesh Nallapati, Xiaofei Ma, Zhiguo Wang

arxiv:1908.08167 v2 · 2019-08-22 · cs.CL · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E3HTV6UAPZJZBZM7XFNVW6ZON3}

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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.

Cited by

1 paper in Pith

Query pipeline optimization for cancer patient question answering systems

Receipt and verification

First computed	2026-07-05T00:09:16.409400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26cf3afa807e5390e59fb95b5b7b2e6ee8aa12048f23daf081e45d462d6a9ae1

Aliases

arxiv: 1908.08167 · arxiv_version: 1908.08167v2 · doi: 10.48550/arxiv.1908.08167 · pith_short_12: E3HTV6UAPZJZ · pith_short_16: E3HTV6UAPZJZBZM7 · pith_short_8: E3HTV6UA

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/E3HTV6UAPZJZBZM7XFNVW6ZON3 \
  | 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: 26cf3afa807e5390e59fb95b5b7b2e6ee8aa12048f23daf081e45d462d6a9ae1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bca3cb805172010183a4802b22cacc93020a0dd89e2fb5d334999268517a9517",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-08-22T02:00:53Z",
    "title_canon_sha256": "dda1ded543e597b9e6cd45b1a20a80c54ccbd6bbd21b15bcf3f7c8612333bdc8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08167",
    "kind": "arxiv",
    "version": 2
  }
}