Pith Number

pith:BNR4C6XR

pith:2011:BNR4C6XRWK2AFD7KNTKDTGYRKU

not attested not anchored not stored refs pending

The Maximum Clique Problem in Multiple Interval Graphs

Daniel Gon\c{c}alves, Mathew C. Francis, Pascal Ochem

arxiv:1201.0043 v2 · 2011-12-30 · cs.DM · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BNR4C6XRWK2AFD7KNTKDTGYRKU}

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	2026-05-18T04:00:28.120347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b63c17af1b2b4028fea6cd4399b11551f2ac9f24427be22956403954e49fb35

Aliases

arxiv: 1201.0043 · arxiv_version: 1201.0043v2 · doi: 10.48550/arxiv.1201.0043 · pith_short_12: BNR4C6XRWK2A · pith_short_16: BNR4C6XRWK2AFD7K · pith_short_8: BNR4C6XR

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/BNR4C6XRWK2AFD7KNTKDTGYRKU \
  | 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: 0b63c17af1b2b4028fea6cd4399b11551f2ac9f24427be22956403954e49fb35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa271c85ac4ff2a0e49de8cf3d53beada06a0b784c692124e5583603dac5626b",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2011-12-30T00:38:07Z",
    "title_canon_sha256": "92458ae45e1ab4c0de0017682650d0503d82ae483d23eda11443f573ac0bc0f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.0043",
    "kind": "arxiv",
    "version": 2
  }
}