Pith Number

pith:BCDKE3VH

pith:2018:BCDKE3VHPYSDKZW4HKW5MUHLXO

not attested not anchored not stored refs pending

Some New Results on Proper Colouring of Edge-set Graphs

Johan Kok, Sudev Naduvath

arxiv:1805.02198 v1 · 2018-05-06 · math.GM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BCDKE3VHPYSDKZW4HKW5MUHLXO}

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	2026-05-18T00:16:40.649639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0886a26ea77e243566dc3aadd650ebbba6e28f0fe8dd923f3479c453716bd4b3

Aliases

arxiv: 1805.02198 · arxiv_version: 1805.02198v1 · doi: 10.48550/arxiv.1805.02198 · pith_short_12: BCDKE3VHPYSD · pith_short_16: BCDKE3VHPYSDKZW4 · pith_short_8: BCDKE3VH

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/BCDKE3VHPYSDKZW4HKW5MUHLXO \
  | 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: 0886a26ea77e243566dc3aadd650ebbba6e28f0fe8dd923f3479c453716bd4b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "10418f7f211417b9709e2635ada9685ce025e050c4e97245d6d20a301199b6b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2018-05-06T12:29:00Z",
    "title_canon_sha256": "15890f9a6053ec2ec3eba19225dc8f541d79d04952b67e9ff6633c07914d5061"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.02198",
    "kind": "arxiv",
    "version": 1
  }
}