Pith Number

pith:EWIMNPVH

pith:2018:EWIMNPVHTBN457ELJIPIK5KFD7

not attested not anchored not stored refs pending

The niche graphs of bipartite tournaments

Jihoon Choi, Miok Oh, Soogang Eoh, Suh-Ryung Kim

arxiv:1810.05279 v1 · 2018-10-11 · 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{EWIMNPVHTBN457ELJIPIK5KFD7}

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	2026-05-18T00:03:31.148580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2590c6bea7985bcefc8b4a1e8575451fe7df085fc20fa4b3fa3ff5f1dfe4c9a8

Aliases

arxiv: 1810.05279 · arxiv_version: 1810.05279v1 · doi: 10.48550/arxiv.1810.05279 · pith_short_12: EWIMNPVHTBN4 · pith_short_16: EWIMNPVHTBN457EL · pith_short_8: EWIMNPVH

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/EWIMNPVHTBN457ELJIPIK5KFD7 \
  | 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: 2590c6bea7985bcefc8b4a1e8575451fe7df085fc20fa4b3fa3ff5f1dfe4c9a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3149b2e6249152fa74ef66557a304915fff3db94d7d96d5e0733598661fcc361",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-10-11T22:47:19Z",
    "title_canon_sha256": "d7d7cc5b565f48170052de1d7b5c556161c62ee93e54c653ad5366c2bddfebb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.05279",
    "kind": "arxiv",
    "version": 1
  }
}