Pith Number

pith:OFEZXM4E

pith:2018:OFEZXM4EWN274BVI4UZBANG7Q2

not attested not anchored not stored refs pending

On the stab number of rectangle intersection graphs

Dibyayan Chakraborty, Mathew C. Francis

arxiv:1804.06571 v1 · 2018-04-18 · cs.DM · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OFEZXM4EWN274BVI4UZBANG7Q2}

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	2026-05-18T00:17:59.306130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71499bb384b375fe06a8e5321034df86ad45960c92b277e05af526855a448874

Aliases

arxiv: 1804.06571 · arxiv_version: 1804.06571v1 · doi: 10.48550/arxiv.1804.06571 · pith_short_12: OFEZXM4EWN27 · pith_short_16: OFEZXM4EWN274BVI · pith_short_8: OFEZXM4E

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/OFEZXM4EWN274BVI4UZBANG7Q2 \
  | 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: 71499bb384b375fe06a8e5321034df86ad45960c92b277e05af526855a448874

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0027cfc6daa33449989ca430e8a0c1285974cc60015ec942fcc2e38e9c2f6673",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2018-04-18T06:50:27Z",
    "title_canon_sha256": "bb8e8bf87e26af833198017c0644224354f2ab94942f0a686f86a1ceffa4914a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.06571",
    "kind": "arxiv",
    "version": 1
  }
}