Pith Number

pith:H6PKGYIW

pith:2015:H6PKGYIWGLEGC3T7Q7XCUCHQAO

not attested not anchored not stored refs pending

Orthogonal Representation of Graphs

Alberto Sol\'is-Encina, Jos\'e Ram\'on Portillo

arxiv:1504.03662 v2 · 2015-04-14 · 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{H6PKGYIWGLEGC3T7Q7XCUCHQAO}

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	2026-05-18T02:18:23.178150Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f9ea3611632c8616e7f87ee2a08f0038c8b934a82481e02eee62bcc3d6fdc4e

Aliases

arxiv: 1504.03662 · arxiv_version: 1504.03662v2 · doi: 10.48550/arxiv.1504.03662 · pith_short_12: H6PKGYIWGLEG · pith_short_16: H6PKGYIWGLEGC3T7 · pith_short_8: H6PKGYIW

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/H6PKGYIWGLEGC3T7Q7XCUCHQAO \
  | 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: 3f9ea3611632c8616e7f87ee2a08f0038c8b934a82481e02eee62bcc3d6fdc4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff0c4935965e1885834d38031987be6c0ca054a9abc314d58163213fba533853",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-04-14T19:09:18Z",
    "title_canon_sha256": "7aefa6cd7a8f5da98af8d8b7176032b7f9fa25b457f02f1775a99672ae029a45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03662",
    "kind": "arxiv",
    "version": 2
  }
}