Pith Number

pith:2XMFJ6MZ

pith:2012:2XMFJ6MZ4DTV42OYY6DJRB5M6V

not attested not anchored not stored refs pending

On Exact Algorithms for Permutation CSP

Daniel Goncalves, Eun Jung Kim

arxiv:1203.2801 v1 · 2012-03-13 · 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{2XMFJ6MZ4DTV42OYY6DJRB5M6V}

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	2026-05-18T04:00:14.553586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5d854f999e0e75e69d8c7869887acf5470c55dd455b699887000c0c5bf4e5a2

Aliases

arxiv: 1203.2801 · arxiv_version: 1203.2801v1 · doi: 10.48550/arxiv.1203.2801 · pith_short_12: 2XMFJ6MZ4DTV · pith_short_16: 2XMFJ6MZ4DTV42OY · pith_short_8: 2XMFJ6MZ

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/2XMFJ6MZ4DTV42OYY6DJRB5M6V \
  | 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: d5d854f999e0e75e69d8c7869887acf5470c55dd455b699887000c0c5bf4e5a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11a02a34a9476fb979908f6f80b2fee775ea8af0631b75bc7a14e182665e9370",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2012-03-13T13:38:45Z",
    "title_canon_sha256": "a58a0a2937600086cad78b9b5de5a8a00adb6e42297f927ef8a5dc2ef57ce047"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.2801",
    "kind": "arxiv",
    "version": 1
  }
}