Pith Number

pith:HNAH6MAP

pith:2016:HNAH6MAPP6MUAXG2MUDQJ33M3D

not attested not anchored not stored refs pending

On the strong chromatic number of graphs

Maria Axenovich, Ryan R. Martin

arxiv:1605.06574 v2 · 2016-05-21 · math.CO

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

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	2026-05-18T01:13:46.752906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b407f300f7f99405cda650704ef6cd8fe21c5e948b85a435d9ba32f04ae193c

Aliases

arxiv: 1605.06574 · arxiv_version: 1605.06574v2 · doi: 10.48550/arxiv.1605.06574 · pith_short_12: HNAH6MAPP6MU · pith_short_16: HNAH6MAPP6MUAXG2 · pith_short_8: HNAH6MAP

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/HNAH6MAPP6MUAXG2MUDQJ33M3D \
  | 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: 3b407f300f7f99405cda650704ef6cd8fe21c5e948b85a435d9ba32f04ae193c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7952580fbce78e7a402633599042dde8940816ae4610b92541452b5afe9ac75",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-05-21T02:27:02Z",
    "title_canon_sha256": "6c3a29ae8ea0ac8729097e2786b77e88db269b5446be90b9d2952ffb63aa4b93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.06574",
    "kind": "arxiv",
    "version": 2
  }
}