Pith Number

pith:NTQSSS27

pith:2016:NTQSSS27I4KWVLDYJJMGBIWLS2

not attested not anchored not stored refs pending

Coloring Sums of Extensions of Certain Graphs

Johan Kok, Saptarshi Bej

arxiv:1602.03735 v1 · 2016-02-01 · 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{NTQSSS27I4KWVLDYJJMGBIWLS2}

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	2026-05-18T01:20:56.709388Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ce1294b5f47156aac784a5860a2cb96aa2d5323089f881181853c0d287de98c

Aliases

arxiv: 1602.03735 · arxiv_version: 1602.03735v1 · doi: 10.48550/arxiv.1602.03735 · pith_short_12: NTQSSS27I4KW · pith_short_16: NTQSSS27I4KWVLDY · pith_short_8: NTQSSS27

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/NTQSSS27I4KWVLDYJJMGBIWLS2 \
  | 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: 6ce1294b5f47156aac784a5860a2cb96aa2d5323089f881181853c0d287de98c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2898a44fb7a81fda693634c215aefeacf5d001e2adcce897b6da4ef592ad54ee",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2016-02-01T09:10:04Z",
    "title_canon_sha256": "99fb60aa8a79ee7114dfaad8fcdb48fb16800ec525e22e1731b3d58a84e7b97b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.03735",
    "kind": "arxiv",
    "version": 1
  }
}