Pith Number

pith:XHDSCPYY

pith:2018:XHDSCPYYGFWLRET5ADEZETKYRQ

not attested not anchored not stored refs pending

Rank of weighted digraphs with blocks

Abraham Berman, Naomi Shaked-Monderer, Ranveer Singh, Swarup Kumar Panda

arxiv:1807.04208 v2 · 2018-07-11 · 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{XHDSCPYYGFWLRET5ADEZETKYRQ}

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	2026-05-18T00:03:46.235140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9c7213f18316cb8927d00c9924d588c129f80ef713b0bc6fecf56101d08b2a9

Aliases

arxiv: 1807.04208 · arxiv_version: 1807.04208v2 · doi: 10.48550/arxiv.1807.04208 · pith_short_12: XHDSCPYYGFWL · pith_short_16: XHDSCPYYGFWLRET5 · pith_short_8: XHDSCPYY

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/XHDSCPYYGFWLRET5ADEZETKYRQ \
  | 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: b9c7213f18316cb8927d00c9924d588c129f80ef713b0bc6fecf56101d08b2a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7034f93c7dbdf268b59c7eb5ee8d78edd13e77655f9b851361927813781d348",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2018-07-11T15:51:42Z",
    "title_canon_sha256": "d7692f61d59b5b7467e907a607d825cce432eccd36cca32e0e784c42b57abd1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04208",
    "kind": "arxiv",
    "version": 2
  }
}