Pith Number

pith:3Y4JYW3C

pith:2012:3Y4JYW3C3LGI5FJLSTS7IZ75LS

not attested not anchored not stored refs pending

Cross-Bifix-Free Codes Within a Constant Factor of Optimality

Chengmin Wang, Han Mao Kiah, Punarbasu Purkayastha, Yeow Meng Chee

arxiv:1209.0236 v2 · 2012-09-03 · cs.IT · math.CO · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3Y4JYW3C3LGI5FJLSTS7IZ75LS}

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	2026-05-18T03:31:29.490738Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de389c5b62dacc8e952b94e5f467fd5cb9408a56523d9084b3b288a117be6816

Aliases

arxiv: 1209.0236 · arxiv_version: 1209.0236v2 · doi: 10.48550/arxiv.1209.0236 · pith_short_12: 3Y4JYW3C3LGI · pith_short_16: 3Y4JYW3C3LGI5FJL · pith_short_8: 3Y4JYW3C

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/3Y4JYW3C3LGI5FJLSTS7IZ75LS \
  | 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: de389c5b62dacc8e952b94e5f467fd5cb9408a56523d9084b3b288a117be6816

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed10ad4c5256b872cdfdce431a4b26f8535d5fffbed80a04fc9eaddfab4b0052",
    "cross_cats_sorted": [
      "math.CO",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-09-03T03:29:10Z",
    "title_canon_sha256": "808b85605bf835dde1a5abfc3f2327000c9de8c92780abef86b9159573f2eb3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.0236",
    "kind": "arxiv",
    "version": 2
  }
}