Pith Number

pith:CXCOKO6I

pith:2017:CXCOKO6I7JP3BJOP6SKEWV6TUD

not attested not anchored not stored refs pending

Square-Contact Representations of Partial 2-Trees and Triconnected Simply-Nested Graphs

David Eppstein, Giordano Da Lozzo, Timothy Johnson, William E. Devanny

arxiv:1710.00426 v1 · 2017-10-01 · 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{CXCOKO6I7JP3BJOP6SKEWV6TUD}

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	2026-05-18T00:33:54.794831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15c4e53bc8fa5fb0a5cff4944b57d3a0cfc00ebb6bf7dd34d2a57174955e1ce3

Aliases

arxiv: 1710.00426 · arxiv_version: 1710.00426v1 · doi: 10.48550/arxiv.1710.00426 · pith_short_12: CXCOKO6I7JP3 · pith_short_16: CXCOKO6I7JP3BJOP · pith_short_8: CXCOKO6I

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/CXCOKO6I7JP3BJOP6SKEWV6TUD \
  | 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: 15c4e53bc8fa5fb0a5cff4944b57d3a0cfc00ebb6bf7dd34d2a57174955e1ce3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c42f8c4ab41fa05269e21bd49c3c9c7497297b1cde4e121828a91a703df5275e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-10-01T22:15:50Z",
    "title_canon_sha256": "7ee7113e575a30871af9a5b074999591edfbd6589e40bc8a6a85b93b1ab52b5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.00426",
    "kind": "arxiv",
    "version": 1
  }
}