Pith Number

pith:6FA57DHA

pith:2017:6FA57DHAPVOY2S7U57UGE7LMFG

not attested not anchored not stored refs pending

Embedded-width: A variant of treewidth for plane graphs

Glencora Borradaile, Hung Le, Jeff Erickson, Robbie Weber

arxiv:1703.07532 v1 · 2017-03-22 · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6FA57DHAPVOY2S7U57UGE7LMFG}

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	2026-05-18T00:48:06.771266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f141df8ce07d5d8d4bf4efe8627d6c29b8fc42e1af6a19af304d5af4a3b5c402

Aliases

arxiv: 1703.07532 · arxiv_version: 1703.07532v1 · doi: 10.48550/arxiv.1703.07532 · pith_short_12: 6FA57DHAPVOY · pith_short_16: 6FA57DHAPVOY2S7U · pith_short_8: 6FA57DHA

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/6FA57DHAPVOY2S7U57UGE7LMFG \
  | 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: f141df8ce07d5d8d4bf4efe8627d6c29b8fc42e1af6a19af304d5af4a3b5c402

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e89563660de95d242735174bf729da98f3419ad6c7e776636792e966de940c39",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2017-03-22T05:29:48Z",
    "title_canon_sha256": "0c2310d27c4e706b881800552bf102f1492aa1a564f181a86333dbe96c2bbe39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.07532",
    "kind": "arxiv",
    "version": 1
  }
}