Pith Number

pith:72QPKGJG

pith:2022:72QPKGJG7S5PRUGTQQX2EEBA6A

not attested not anchored not stored refs pending

A Semantic Web Technology Index

Gongjin Lan, Ting Liu, Xueli Pan, Xu Wang, Zhisheng Huang

arxiv:2201.07034 v1 · 2022-01-14 · cs.SE · 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{72QPKGJG7S5PRUGTQQX2EEBA6A}

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	2026-07-05T03:49:34.000142Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fea0f51926fcbaf8d0d3842fa21020f00b5c212f94b98ed3f8c1ae001b05ccdf

Aliases

arxiv: 2201.07034 · arxiv_version: 2201.07034v1 · doi: 10.48550/arxiv.2201.07034 · pith_short_12: 72QPKGJG7S5P · pith_short_16: 72QPKGJG7S5PRUGT · pith_short_8: 72QPKGJG

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/72QPKGJG7S5PRUGTQQX2EEBA6A \
  | 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: fea0f51926fcbaf8d0d3842fa21020f00b5c212f94b98ed3f8c1ae001b05ccdf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00f27d68babfd29511dd6c5485c48dd554cdc48b08820edddeecd4968b4afdbc",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2022-01-14T16:22:11Z",
    "title_canon_sha256": "7ac188463229158a38897e7d7e0eb8aec6283f0ca1c4e59fbd0ec2ac4b65ee5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.07034",
    "kind": "arxiv",
    "version": 1
  }
}