Pith Number

pith:LJ4WHG3P

pith:2020:LJ4WHG3PKEU5HDIHZ35LZTWQLF

not attested not anchored not stored refs pending

HopRetriever: Retrieve Hops over Wikipedia to Answer Complex Questions

Bingquan Liu, Chengjie Sun, Lifeng Shang, Qun Liu, Shaobo Li, Xiaoguang Li, Xin Jiang, Zhenzhou Ji

arxiv:2012.15534 v1 · 2020-12-31 · 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{LJ4WHG3PKEU5HDIHZ35LZTWQLF}

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	2026-07-05T02:03:19.458084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a79639b6f5129d38d07cefabcced059408f15a76533927adf5244e98e031bbc

Aliases

arxiv: 2012.15534 · arxiv_version: 2012.15534v1 · doi: 10.48550/arxiv.2012.15534 · pith_short_12: LJ4WHG3PKEU5 · pith_short_16: LJ4WHG3PKEU5HDIH · pith_short_8: LJ4WHG3P

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/LJ4WHG3PKEU5HDIHZ35LZTWQLF \
  | 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: 5a79639b6f5129d38d07cefabcced059408f15a76533927adf5244e98e031bbc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d6c1a1c060884f51427eca6a6e77f1a7a08c694920b71b2e41187816023b147",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-12-31T10:36:01Z",
    "title_canon_sha256": "943e6799fd851741fbe07d24ead3e77f6f1150e64c7f83f2a7e482b4540893dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.15534",
    "kind": "arxiv",
    "version": 1
  }
}