Pith Number

pith:OLOY6HLI

pith:2012:OLOY6HLI3AGWQGCDZSRI6MDSUF

not attested not anchored not stored refs pending

Space-efficient Algorithms for Visibility Problems in Simple Polygon

Anil Maheshwari, Minati De, Subhas C. Nandy

arxiv:1204.2634 v1 · 2012-04-12 · 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{OLOY6HLI3AGWQGCDZSRI6MDSUF}

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	2026-05-18T03:58:03.861698Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72dd8f1d68d80d681843cca28f3072a17e572217c9dafa4f88f68f50a1070bc2

Aliases

arxiv: 1204.2634 · arxiv_version: 1204.2634v1 · doi: 10.48550/arxiv.1204.2634 · pith_short_12: OLOY6HLI3AGW · pith_short_16: OLOY6HLI3AGWQGCD · pith_short_8: OLOY6HLI

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/OLOY6HLI3AGWQGCDZSRI6MDSUF \
  | 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: 72dd8f1d68d80d681843cca28f3072a17e572217c9dafa4f88f68f50a1070bc2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e8cd5964029e0c95998e51a90abcf95a4a4578d007059a85987d1b75918f135",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2012-04-12T07:07:33Z",
    "title_canon_sha256": "564fe725d42d1d5f2a986ada154116a8ecbbdff51b4286e45f882e0ccfc66dda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2634",
    "kind": "arxiv",
    "version": 1
  }
}