Pith Number

pith:PQWBJTFD

pith:2016:PQWBJTFDPM2YJHHZ2ZCR6XE7EB

not attested not anchored not stored refs pending

The Mathematics of Xenology: Di-cographs, Symbolic Ultrametrics, 2-structures and Tree-representable Systems of Binary Relations

Marc Hellmuth, Nicolas Wieseke, Peter F. Stadler

arxiv:1603.02467 v1 · 2016-03-08 · 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{PQWBJTFDPM2YJHHZ2ZCR6XE7EB}

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	2026-05-18T01:19:23.211756Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c2c14cca37b35849cf9d6451f5c9f2070f936f08e55b47564e20db1c35b950b

Aliases

arxiv: 1603.02467 · arxiv_version: 1603.02467v1 · doi: 10.48550/arxiv.1603.02467 · pith_short_12: PQWBJTFDPM2Y · pith_short_16: PQWBJTFDPM2YJHHZ · pith_short_8: PQWBJTFD

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/PQWBJTFDPM2YJHHZ2ZCR6XE7EB \
  | 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: 7c2c14cca37b35849cf9d6451f5c9f2070f936f08e55b47564e20db1c35b950b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "893ee7b47c639b1cd3b0766e199c409280052397ddecb2ab194fe3216ab90363",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2016-03-08T10:33:24Z",
    "title_canon_sha256": "912a5c624cc15c239bdcc65fb9257f625913103247764b5a369eb19bdf17efbc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.02467",
    "kind": "arxiv",
    "version": 1
  }
}