Pith Number

pith:QJGYG4NW

pith:2024:QJGYG4NWLTMNVM3CPVHEQNDOBA

not attested not anchored not stored refs pending

On Hadwiger's covering problem in small dimensions

Andrii Arman, Andriy Bondarenko, Andriy Prymak

arxiv:2404.00547 v1 · 2024-03-31 · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QJGYG4NWLTMNVM3CPVHEQNDOBA}

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	2026-07-05T08:02:34.838395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

824d8371b65cd8dab3627d4e48346e08032e9d8caa44e6e3c96e315fef5ad6f0

Aliases

arxiv: 2404.00547 · arxiv_version: 2404.00547v1 · doi: 10.48550/arxiv.2404.00547 · pith_short_12: QJGYG4NWLTMN · pith_short_16: QJGYG4NWLTMNVM3C · pith_short_8: QJGYG4NW

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/QJGYG4NWLTMNVM3CPVHEQNDOBA \
  | 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: 824d8371b65cd8dab3627d4e48346e08032e9d8caa44e6e3c96e315fef5ad6f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe5d559df6d3499fcaeb2c14b5efbd36dd31a03a0575582a71e50e409d7f69fc",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2024-03-31T03:30:28Z",
    "title_canon_sha256": "cde36c2f0dd81374cb1117a13501e1dad580ca3733d2b04ad33995cce9c3345a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2404.00547",
    "kind": "arxiv",
    "version": 1
  }
}