Pith Number

pith:H6HP6KUU

pith:2012:H6HP6KUUBOCRPDW7IRH46EA7ZY

not attested not anchored not stored refs pending

Parallel and sequential in-place permuting and perfect shuffling using involutions

Frank Ruskey, John Ellis, Khalegh Mamakani, Qingxuan Yang

arxiv:1204.1958 v2 · 2012-04-09 · 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{H6HP6KUUBOCRPDW7IRH46EA7ZY}

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	2026-05-18T02:21:16.427917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f8eff2a940b85178edf444fcf101fce30f36cdc62f343c251f0231c95c5fe68

Aliases

arxiv: 1204.1958 · arxiv_version: 1204.1958v2 · doi: 10.48550/arxiv.1204.1958 · pith_short_12: H6HP6KUUBOCR · pith_short_16: H6HP6KUUBOCRPDW7 · pith_short_8: H6HP6KUU

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/H6HP6KUUBOCRPDW7IRH46EA7ZY \
  | 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: 3f8eff2a940b85178edf444fcf101fce30f36cdc62f343c251f0231c95c5fe68

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ba36c33f90c73042174220a92ae52537cfbc97effd7dfddc11ebd98eb21ece3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-04-09T19:39:27Z",
    "title_canon_sha256": "af6db26a670f0351c35b9ce1f43a60606707dc59000b5ea62487a0c4bdc760e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.1958",
    "kind": "arxiv",
    "version": 2
  }
}