Pith Number

pith:4MIZ7YAS

pith:2018:4MIZ7YAS4IGEW4VCBZ57YAWCLA

not attested not anchored not stored refs pending

A note on polyomino chains with extremum general sum-connectivity index

Akbar Ali, Tahir Idrees

arxiv:1803.04657 v1 · 2018-03-13 · 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	2026-05-18T00:21:18.238520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3119fe012e20c4b72a20e7bfc02c2582e120732145999f2b5a70fcc4c50f4bf

Aliases

arxiv: 1803.04657 · arxiv_version: 1803.04657v1 · doi: 10.48550/arxiv.1803.04657 · pith_short_12: 4MIZ7YAS4IGE · pith_short_16: 4MIZ7YAS4IGEW4VC · pith_short_8: 4MIZ7YAS

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/4MIZ7YAS4IGEW4VCBZ57YAWCLA \
  | 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: e3119fe012e20c4b72a20e7bfc02c2582e120732145999f2b5a70fcc4c50f4bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a03435ac3513c6e062145ef83c9c28b56ba51838203fc7dad742ded1eafeee1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-03-13T07:02:03Z",
    "title_canon_sha256": "869567fe7928a05f97d5ee9f3aac6e50f7d3f76acdcdcb74095686a28c13510a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.04657",
    "kind": "arxiv",
    "version": 1
  }
}