Pith Number

pith:KWJ27AXD

pith:2011:KWJ27AXDUQXVC6D4ZZUMV6PGNQ

not attested not anchored not stored refs pending

On Sorting by Bounded Block Interchanges

Swapnoneel Roy

arxiv:1102.3245 v5 · 2011-02-16 · cs.CC · 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{KWJ27AXDUQXVC6D4ZZUMV6PGNQ}

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	2026-05-18T04:11:40.689293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5593af82e3a42f51787cce68caf9e66c01113c8e7f7f71f9a3e30497836d40a7

Aliases

arxiv: 1102.3245 · arxiv_version: 1102.3245v5 · doi: 10.48550/arxiv.1102.3245 · pith_short_12: KWJ27AXDUQXV · pith_short_16: KWJ27AXDUQXVC6D4 · pith_short_8: KWJ27AXD

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/KWJ27AXDUQXVC6D4ZZUMV6PGNQ \
  | 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: 5593af82e3a42f51787cce68caf9e66c01113c8e7f7f71f9a3e30497836d40a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7de5622c10df823f105dbcf617c8c9dadf46e2e4bd3f181f1930088020eb8833",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2011-02-16T05:45:04Z",
    "title_canon_sha256": "3258f901d3a7eb03ec22409e8deab09d14bbb97cc3984853e22f9cb2ce1c3347"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.3245",
    "kind": "arxiv",
    "version": 5
  }
}