Pith Number

pith:IZ626QX7

pith:2016:IZ626QX7PG5QON3TCAMOQRV6US

not attested not anchored not stored refs pending

Algorithmic Aspects of Regular Graph Covers

Jan Kratochv\'il, Ji\v{r}\'i Fiala, Pavel Klav\'ik, Roman Nedela

arxiv:1609.03013 v2 · 2016-09-10 · cs.DM · math.CO · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IZ626QX7PG5QON3TCAMOQRV6US}

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	2026-05-18T00:51:57.583482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

467daf42ff79bb0737731018e846bea4aff68040559eb771a237622b64fcd0cf

Aliases

arxiv: 1609.03013 · arxiv_version: 1609.03013v2 · doi: 10.48550/arxiv.1609.03013 · pith_short_12: IZ626QX7PG5Q · pith_short_16: IZ626QX7PG5QON3T · pith_short_8: IZ626QX7

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/IZ626QX7PG5QON3TCAMOQRV6US \
  | 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: 467daf42ff79bb0737731018e846bea4aff68040559eb771a237622b64fcd0cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbf6d120fa34ec45f3b6bcda46852352cd1bfabc0f5a5c9b6081de6348c51d51",
    "cross_cats_sorted": [
      "math.CO",
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2016-09-10T08:34:56Z",
    "title_canon_sha256": "ada9354c04c356aac9ad31909d233a24762117fbf7d3999fb55a4804b45b3ef5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.03013",
    "kind": "arxiv",
    "version": 2
  }
}