Pith Number

pith:ESRNZAFE

pith:2017:ESRNZAFESWRUPJ6HSPMDP6KQVU

not attested not anchored not stored refs pending

On Guarding Orthogonal Polygons with Bounded Treewidth

Saeed Mehrabi, Therese Biedl

arxiv:1706.02028 v1 · 2017-06-07 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ESRNZAFESWRUPJ6HSPMDP6KQVU}

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	2026-05-18T00:42:50.434344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24a2dc80a495a347a7c793d837f950ad39bc7035c9fa6d85db24cb14339aa47f

Aliases

arxiv: 1706.02028 · arxiv_version: 1706.02028v1 · doi: 10.48550/arxiv.1706.02028 · pith_short_12: ESRNZAFESWRU · pith_short_16: ESRNZAFESWRUPJ6H · pith_short_8: ESRNZAFE

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/ESRNZAFESWRUPJ6HSPMDP6KQVU \
  | 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: 24a2dc80a495a347a7c793d837f950ad39bc7035c9fa6d85db24cb14339aa47f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "158072ac805202b81bbeb826f32c51e7f8b1a5a94563e61b4b6f9418df8d4501",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-06-07T02:16:49Z",
    "title_canon_sha256": "45c324dd997c440df16668377640bd7b68d717fb4ff7183722d88f4baa8d7277"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.02028",
    "kind": "arxiv",
    "version": 1
  }
}