Pith Number

pith:DF6KUI2G

pith:1999:DF6KUI2GJ5THBJRYJ7BDWV6YDH

not attested not anchored not stored refs pending

The Distribution of Cycle Lengths in Graphical Models for Iterative Decoding

David Eppstein, Padhraic Smyth, Xian-ping Ge

arxiv:cs/9907002 v1 · 1999-07-02 · 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{DF6KUI2GJ5THBJRYJ7BDWV6YDH}

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	2026-07-04T17:20:01.744526Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

197caa23464f6670a6384fc23b57d819d7cf0d03e99cce9dd30474dc3a34f9d6

Aliases

arxiv: cs/9907002 · arxiv_version: cs/9907002v1 · doi: 10.48550/arxiv.cs/9907002 · pith_short_12: DF6KUI2GJ5TH · pith_short_16: DF6KUI2GJ5THBJRY · pith_short_8: DF6KUI2G

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/DF6KUI2GJ5THBJRYJ7BDWV6YDH \
  | 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: 197caa23464f6670a6384fc23b57d819d7cf0d03e99cce9dd30474dc3a34f9d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6eff3680c0d7c51a8a7e72b7563c1ec5b77fb79fb0cad263b924304c23f19544",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.DM",
    "submitted_at": "1999-07-02T23:37:54Z",
    "title_canon_sha256": "426ebe05cb6dc421aeea6f7994e2b5c367e27c40fed746add2b671ab9ee8a8f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/9907002",
    "kind": "arxiv",
    "version": 1
  }
}