Pith Number

pith:ZHESIJZF

pith:2017:ZHESIJZF63DNUQT45JQPZJXQM5

not attested not anchored not stored refs pending

Grid-Obstacle Representations with Connections to Staircase Guarding

Saeed Mehrabi, Therese Biedl

arxiv:1708.01903 v2 · 2017-08-06 · 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{ZHESIJZF63DNUQT45JQPZJXQM5}

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	2026-05-18T00:36:21.810290Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9c9242725f6c6da427cea60fca6f067419e7038a562bec7a0249ac12a5151a4

Aliases

arxiv: 1708.01903 · arxiv_version: 1708.01903v2 · doi: 10.48550/arxiv.1708.01903 · pith_short_12: ZHESIJZF63DN · pith_short_16: ZHESIJZF63DNUQT4 · pith_short_8: ZHESIJZF

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/ZHESIJZF63DNUQT45JQPZJXQM5 \
  | 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: c9c9242725f6c6da427cea60fca6f067419e7038a562bec7a0249ac12a5151a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ae0e894621f9df671b9d3c870e09ac331050bfcb9dee0d93083ad99f7da8932",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-08-06T15:47:26Z",
    "title_canon_sha256": "096b16d54df3d6f4c2e6188270cb7feb1c312ec34697686add9e22e7c026943c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.01903",
    "kind": "arxiv",
    "version": 2
  }
}