Pith Number

pith:UFJCCWYX

pith:2018:UFJCCWYXCEM65M7IMWVBFIGWCX

not attested not anchored not stored refs pending

Properties of a $q$-analogue of zero forcing

Boting Yang, Brenda Kroschel, Bryan Shader, Craig Erickson, H. Tracy Hall, Jephian C.-H. Lin, Nathan Warnberg, Shaun Fallat, Steve Butler

arxiv:1809.07640 v1 · 2018-09-20 · 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{UFJCCWYXCEM65M7IMWVBFIGWCX}

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	2026-05-18T00:05:15.649773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a152215b171119eeb3e865aa12a0d615d9c12853444eb302b030c11a2c8811b7

Aliases

arxiv: 1809.07640 · arxiv_version: 1809.07640v1 · doi: 10.48550/arxiv.1809.07640 · pith_short_12: UFJCCWYXCEM6 · pith_short_16: UFJCCWYXCEM65M7I · pith_short_8: UFJCCWYX

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/UFJCCWYXCEM65M7IMWVBFIGWCX \
  | 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: a152215b171119eeb3e865aa12a0d615d9c12853444eb302b030c11a2c8811b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f88fb98865335e45a3917d42256083b937c6636419828b514567ec4ac3fffc6f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-09-20T14:06:53Z",
    "title_canon_sha256": "c62bb10897f14979cfab307023daa99a05b2ed61823083592091fab79d40fa8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.07640",
    "kind": "arxiv",
    "version": 1
  }
}