Pith Number

pith:UABQLDJP

pith:2012:UABQLDJPV2RQNHA5ST5XZWTAUL

not attested not anchored not stored refs pending

Bounds and Computation of Irregularity of a Graph

Darko Dimitrov, Hosam Abdo, Nathann Cohen

arxiv:1207.4804 v1 · 2012-07-19 · cs.DM · math.CO

Open paper page JSON 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

Receipt and verification

First computed	2026-05-18T02:21:08.139539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a003058d2faea3069c1d94fb7cda60a2c1b2d1cffe91e1df40c8b1e6afbef373

Aliases

arxiv: 1207.4804 · arxiv_version: 1207.4804v1 · doi: 10.48550/arxiv.1207.4804 · pith_short_12: UABQLDJPV2RQ · pith_short_16: UABQLDJPV2RQNHA5 · pith_short_8: UABQLDJP

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/UABQLDJPV2RQNHA5ST5XZWTAUL \
  | 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: a003058d2faea3069c1d94fb7cda60a2c1b2d1cffe91e1df40c8b1e6afbef373

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2be797618e954e063afb61d846272482836040c6d4670df59521f789c6b76890",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2012-07-19T20:27:21Z",
    "title_canon_sha256": "27d2c0451c9092d39e2a497a6365857b1b5a17369d5ec66c18a5a35a83fcdead"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4804",
    "kind": "arxiv",
    "version": 1
  }
}