Pith Number

pith:7PQAKP6U

pith:2019:7PQAKP6UIOOHTEGLQINVRF5NUM

not attested not anchored not stored refs pending

Top-Down Shape Abstraction Based on Greedy Pole Selection

Changhe Tu, Jian Xu, Rui Xu, Shiqing Xin, Shuangmin Chen, Wenping Wang, Xiuyang Zhao, Yuanfeng Zhou, Zhiyang Dou

arxiv:1910.08954 v3 · 2019-10-20 · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7PQAKP6UIOOHTEGLQINVRF5NUM}

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	2026-07-05T01:28:18.200552Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbe0053fd4439c7990cb821b5897ada324aad496831e58fa90e976be57332269

Aliases

arxiv: 1910.08954 · arxiv_version: 1910.08954v3 · doi: 10.48550/arxiv.1910.08954 · pith_short_12: 7PQAKP6UIOOH · pith_short_16: 7PQAKP6UIOOHTEGL · pith_short_8: 7PQAKP6U

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/7PQAKP6UIOOHTEGLQINVRF5NUM \
  | 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: fbe0053fd4439c7990cb821b5897ada324aad496831e58fa90e976be57332269

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e011635f1f33d069bca5654c987a7881721eca48c1317d80557d803b6aee8b8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2019-10-20T11:48:41Z",
    "title_canon_sha256": "fb811f93c5cee87ae1fb2b93defdb60eeb36371f2388c6b3926da56a83ed7975"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.08954",
    "kind": "arxiv",
    "version": 3
  }
}