Pith Number

pith:NL2BPBTP

pith:2009:NL2BPBTPEWM5L2WDMFJD6HX5X7

not attested not anchored not stored refs pending

A General Upper Bound on the Size of Constant-Weight Conflict-Avoiding Codes

Chung Shue Chen, Kenneth W. Shum, Wing Shing Wong

arxiv:0910.5073 v3 · 2009-10-27 · cs.IT · 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{NL2BPBTPEWM5L2WDMFJD6HX5X7}

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	2026-05-18T04:36:51.311050Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6af417866f2599d5eac361523f1efdbfc8f7fb0a836ef27cbded19a5133eaef8

Aliases

arxiv: 0910.5073 · arxiv_version: 0910.5073v3 · doi: 10.48550/arxiv.0910.5073 · pith_short_12: NL2BPBTPEWM5 · pith_short_16: NL2BPBTPEWM5L2WD · pith_short_8: NL2BPBTP

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/NL2BPBTPEWM5L2WDMFJD6HX5X7 \
  | 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: 6af417866f2599d5eac361523f1efdbfc8f7fb0a836ef27cbded19a5133eaef8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8db5ab8ba94cff06848c40d9b7b7ca353b38f3bb8e3b014d696ef0e22a0c5a0",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-10-27T09:29:18Z",
    "title_canon_sha256": "e4376988fe994826d43090ad26488cf72cce5f715f0d7873e35b79768bdc54f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.5073",
    "kind": "arxiv",
    "version": 3
  }
}