Pith Number

pith:LUXJEFG4

pith:2011:LUXJEFG4EGCHY5URZ2VF6TOTIE

not attested not anchored not stored refs pending

The Tower of Hanoi problem on Path_h graphs

Amir Sapir, Daniel Berend, Shay Solomon

arxiv:1102.4885 v1 · 2011-02-24 · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LUXJEFG4EGCHY5URZ2VF6TOTIE}

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	2026-05-18T04:27:58.525738Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d2e9214dc21847c7691ceaa5f4dd3412fd04022152fc500fed7ea5ebe3853ef

Aliases

arxiv: 1102.4885 · arxiv_version: 1102.4885v1 · doi: 10.48550/arxiv.1102.4885 · pith_short_12: LUXJEFG4EGCH · pith_short_16: LUXJEFG4EGCHY5UR · pith_short_8: LUXJEFG4

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/LUXJEFG4EGCHY5URZ2VF6TOTIE \
  | 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: 5d2e9214dc21847c7691ceaa5f4dd3412fd04022152fc500fed7ea5ebe3853ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdc1f5c236803214780bb39257877022494f72e73e30f8e569a882b677ea716f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2011-02-24T00:43:34Z",
    "title_canon_sha256": "4dc104c960802dd36e77b7b920b73f12a963911b41bf5792ac5a22a7993ef803"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.4885",
    "kind": "arxiv",
    "version": 1
  }
}