Pith Number

pith:DRNDPHYQ

pith:2012:DRNDPHYQHZEYAD27YHTXLEY32L

not attested not anchored not stored refs pending

Efficient Algorithms for Zeckendorf Arithmetic

Connor Ahlbach, Jeremy Usatine, Nicholas Pippenger

arxiv:1207.4497 v1 · 2012-07-18 · cs.DS · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DRNDPHYQHZEYAD27YHTXLEY32L}

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	2026-05-18T03:50:36.858224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c5a379f103e49800f5fc1e775931bd2fa96431df33ab73db6c74e29d9d7a092

Aliases

arxiv: 1207.4497 · arxiv_version: 1207.4497v1 · doi: 10.48550/arxiv.1207.4497 · pith_short_12: DRNDPHYQHZEY · pith_short_16: DRNDPHYQHZEYAD27 · pith_short_8: DRNDPHYQ

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/DRNDPHYQHZEYAD27YHTXLEY32L \
  | 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: 1c5a379f103e49800f5fc1e775931bd2fa96431df33ab73db6c74e29d9d7a092

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "051c7b5ac5c2c3469ffaf78b83a1c1eef35a83e6fe72a8416bea3d7ecfc8c6ce",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-07-18T20:27:09Z",
    "title_canon_sha256": "574d6a5c02f648ebc14fc7ee69e37228db30ed112f1722715c49b80a31acdf77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4497",
    "kind": "arxiv",
    "version": 1
  }
}