Pith Number

pith:OQAAJKBI

pith:2011:OQAAJKBIKPU5SHKL3ERYFAAMMA

not attested not anchored not stored refs pending

On the complexity of strongly connected components in directed hypergraphs

Xavier Allamigeon

arxiv:1112.1444 v2 · 2011-12-06 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OQAAJKBIKPU5SHKL3ERYFAAMMA}

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	2026-05-18T02:54:47.364146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

740004a82853e9d91d4bd92382800c6030d44695d6995c9a5a351b5209876665

Aliases

arxiv: 1112.1444 · arxiv_version: 1112.1444v2 · doi: 10.48550/arxiv.1112.1444 · pith_short_12: OQAAJKBIKPU5 · pith_short_16: OQAAJKBIKPU5SHKL · pith_short_8: OQAAJKBI

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/OQAAJKBIKPU5SHKL3ERYFAAMMA \
  | 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: 740004a82853e9d91d4bd92382800c6030d44695d6995c9a5a351b5209876665

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9597090dc4ac4a7be733a48a058e32648a788624ab6cb0845af9e8055ad75f61",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2011-12-06T23:26:05Z",
    "title_canon_sha256": "99596a51440230a83e63b09261e41f605d7a4ef58f1026e589432e9b0f69cdb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.1444",
    "kind": "arxiv",
    "version": 2
  }
}