Pith Number

pith:KOOMFB5L

pith:2015:KOOMFB5LGUA5HKJOOMFCF6OLAB

not attested not anchored not stored refs pending

Certified Computation of planar Morse-Smale Complexes

Amit Chattopadhyay, Chee K. Yap, Gert Vegter

arxiv:1506.06265 v1 · 2015-06-20 · 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{KOOMFB5LGUA5HKJOOMFCF6OLAB}

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	2026-05-18T01:41:45.661853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

539cc287ab3501d3a92e730a22f9cb006550dbae2712011a384fa94039895993

Aliases

arxiv: 1506.06265 · arxiv_version: 1506.06265v1 · doi: 10.48550/arxiv.1506.06265 · pith_short_12: KOOMFB5LGUA5 · pith_short_16: KOOMFB5LGUA5HKJO · pith_short_8: KOOMFB5L

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/KOOMFB5LGUA5HKJOOMFCF6OLAB \
  | 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: 539cc287ab3501d3a92e730a22f9cb006550dbae2712011a384fa94039895993

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "274e6c879b8d6bf5992bc531fc0d0952baea478e256f0c99a9519209f64674dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2015-06-20T16:38:30Z",
    "title_canon_sha256": "0c92a509e8bfe1b298100246aa31fc93dce02052bced3482226454de275da135"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.06265",
    "kind": "arxiv",
    "version": 1
  }
}