Pith Number

pith:AFUAFKBD

pith:2014:AFUAFKBDTNA3WDO3HUDDWL7WYY

not attested not anchored not stored refs pending

An abstract approach to polychromatic coloring: shallow hitting sets in ABA-free hypergraphs and pseudohalfplanes

Bal\'azs Keszegh, D\"om\"ot\"or P\'alv\"olgyi

arxiv:1410.0258 v4 · 2014-10-01 · 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{AFUAFKBDTNA3WDO3HUDDWL7WYY}

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	2026-05-17T23:53:01.755743Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

016802a8239b41bb0ddb3d063b2ff6c61e6abadaf83926735ed60640a848884d

Aliases

arxiv: 1410.0258 · arxiv_version: 1410.0258v4 · doi: 10.48550/arxiv.1410.0258 · pith_short_12: AFUAFKBDTNA3 · pith_short_16: AFUAFKBDTNA3WDO3 · pith_short_8: AFUAFKBD

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/AFUAFKBDTNA3WDO3HUDDWL7WYY \
  | 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: 016802a8239b41bb0ddb3d063b2ff6c61e6abadaf83926735ed60640a848884d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2a71bac1d08ac2f28a1ffe3a2ad427a6a8db1e24de4b70608c90c34574164c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-10-01T15:18:22Z",
    "title_canon_sha256": "e085ae7a4e5e3908cdbee9c3ab8d775c7de2aeec35a757bf8a15a894281a1e4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.0258",
    "kind": "arxiv",
    "version": 4
  }
}