Pith Number

pith:QHQFOTQB

pith:2017:QHQFOTQB6VJ4IZHOIE6BOOYLKX

not attested not anchored not stored refs pending

Saving Critical Nodes with Firefighters is FPT

Anirban Dasgupta, Jayesh Choudhari, M. S. Ramanujan, Neeldhara Misra

arxiv:1705.10923 v1 · 2017-05-31 · 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{QHQFOTQB6VJ4IZHOIE6BOOYLKX}

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	2026-05-18T00:43:19.849266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81e0574e01f553c464ee413c173b0b55ec94525262253fc75292e34c7776ba96

Aliases

arxiv: 1705.10923 · arxiv_version: 1705.10923v1 · doi: 10.48550/arxiv.1705.10923 · pith_short_12: QHQFOTQB6VJ4 · pith_short_16: QHQFOTQB6VJ4IZHO · pith_short_8: QHQFOTQB

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/QHQFOTQB6VJ4IZHOIE6BOOYLKX \
  | 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: 81e0574e01f553c464ee413c173b0b55ec94525262253fc75292e34c7776ba96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ea8f9c565aa821ee787a0a936e3cfee1354639c5047199862b13f9fd0aa9ff6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-05-31T02:44:22Z",
    "title_canon_sha256": "2d726e32444e8cc1ee9043b5d337a3a79b866401b6cb7de7d757293d50cc3f88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.10923",
    "kind": "arxiv",
    "version": 1
  }
}