Pith Number

pith:KBCHG5PR

pith:2020:KBCHG5PRUOU3DSU57X67LGULRN

not attested not anchored not stored refs pending

Using the Hammer Only on Nails: A Hybrid Method for Evidence Retrieval for Question Answering

Mihai Surdeanu, Yiyun Zhao, Zhengzhong Liang

arxiv:2009.10791 v1 · 2020-09-22 · 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{KBCHG5PRUOU3DSU57X67LGULRN}

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	2026-07-05T01:37:25.859887Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50447375f1a3a9b1ca9dfdfdf59a8b8b72bfb9d69bf8c64178909ea91b3f0b33

Aliases

arxiv: 2009.10791 · arxiv_version: 2009.10791v1 · doi: 10.48550/arxiv.2009.10791 · pith_short_12: KBCHG5PRUOU3 · pith_short_16: KBCHG5PRUOU3DSU5 · pith_short_8: KBCHG5PR

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/KBCHG5PRUOU3DSU57X67LGULRN \
  | 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: 50447375f1a3a9b1ca9dfdfdf59a8b8b72bfb9d69bf8c64178909ea91b3f0b33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67f33f6ae0a392377d7fe548d6e29d340e67cb3aa6f44deb4c424356726a9c0a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2020-09-22T20:08:14Z",
    "title_canon_sha256": "61d7cb61bb586c6a93f2841f2ebb1d678cf9d4d27303d7df99cfaf53b050dc68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.10791",
    "kind": "arxiv",
    "version": 1
  }
}