Pith Number

pith:7OLKJOHL

pith:2010:7OLKJOHLOIFENFBBPTJCZJFZRJ

not attested not anchored not stored refs pending

Removing Local Extrema from Imprecise Terrains

Chris Gray, Frank Kammer, Maarten Loffler, Rodrigo I. Silveira

arxiv:1002.2580 v2 · 2010-02-12 · cs.CG · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7OLKJOHLOIFENFBBPTJCZJFZRJ}

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	2026-05-18T04:15:36.905991Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb96a4b8eb720a4694217cd22ca4b98a5de82b11d389f2871b2e5c835d910162

Aliases

arxiv: 1002.2580 · arxiv_version: 1002.2580v2 · doi: 10.48550/arxiv.1002.2580 · pith_short_12: 7OLKJOHLOIFE · pith_short_16: 7OLKJOHLOIFENFBB · pith_short_8: 7OLKJOHL

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/7OLKJOHLOIFENFBBPTJCZJFZRJ \
  | 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: fb96a4b8eb720a4694217cd22ca4b98a5de82b11d389f2871b2e5c835d910162

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45fccb5fa69d33e3e62afaea745340cfab32954d07736acbe70e255128877182",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2010-02-12T15:56:49Z",
    "title_canon_sha256": "21d26cf1457d6de515d6e7b777e18aeab5acfcbe65b906fae8c78dbb6b4c398b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.2580",
    "kind": "arxiv",
    "version": 2
  }
}