Pith Number

pith:WFFXDGM6

pith:2018:WFFXDGM65UC664HCGX4FXVCLRQ

not attested not anchored not stored refs pending

Approximations of Mappings

Jaroslav Nesetril, Patrice Ossona de Mendez

arxiv:1805.04834 v1 · 2018-05-13 · math.CO · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WFFXDGM65UC664HCGX4FXVCLRQ}

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	2026-05-18T00:16:04.491792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b14b71999eed05ef70e235f85bd44b8c190042d6b1dd913a7cd222cbcd22d819

Aliases

arxiv: 1805.04834 · arxiv_version: 1805.04834v1 · doi: 10.48550/arxiv.1805.04834 · pith_short_12: WFFXDGM65UC6 · pith_short_16: WFFXDGM65UC664HC · pith_short_8: WFFXDGM6

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/WFFXDGM65UC664HCGX4FXVCLRQ \
  | 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: b14b71999eed05ef70e235f85bd44b8c190042d6b1dd913a7cd222cbcd22d819

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9b97115e779f2bcfcd5438549bff7fca615ba94b4ee03bcf7509041af435844",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-05-13T07:11:31Z",
    "title_canon_sha256": "d679b0d2d386e432e202d3fffdb18b9dbd1da7dcad1e888df82acdaa116872ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.04834",
    "kind": "arxiv",
    "version": 1
  }
}