Pith Number

pith:YQEVUVUM

pith:2020:YQEVUVUMPVXIGKRA6NKIS63Y7A

not attested not anchored not stored refs pending

An update on reconfiguring $10$-colorings of planar graphs

Carl Feghali, Zden\v{e}k Dvo\v{r}\'ak

arxiv:2002.05383 v1 · 2020-02-13 · 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{YQEVUVUMPVXIGKRA6NKIS63Y7A}

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	2026-07-05T00:40:30.739485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4095a568c7d6e832a20f354897b78f81099cc076b25d974e9c8e8695efdeabb

Aliases

arxiv: 2002.05383 · arxiv_version: 2002.05383v1 · doi: 10.48550/arxiv.2002.05383 · pith_short_12: YQEVUVUMPVXI · pith_short_16: YQEVUVUMPVXIGKRA · pith_short_8: YQEVUVUM

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/YQEVUVUMPVXIGKRA6NKIS63Y7A \
  | 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: c4095a568c7d6e832a20f354897b78f81099cc076b25d974e9c8e8695efdeabb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a56c63a4cfa6151f8ae1b2e3ed5acad902222b626b49b03c36b64136d2a4de5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2020-02-13T08:06:21Z",
    "title_canon_sha256": "cb7d178aa0df563a4ca5e1b692276edd0ae1c7c0bfcec577b137b04e1d6ebc74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.05383",
    "kind": "arxiv",
    "version": 1
  }
}