Pith Number

pith:4EYLY7A4

pith:2018:4EYLY7A4SBYUQPEUM7ILV4FVCE

not attested not anchored not stored refs pending

Optimal Equi-difference Conflict-avoiding Codes

Derong Xie, Jinquan Luo

arxiv:1809.09300 v1 · 2018-09-25 · 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{4EYLY7A4SBYUQPEUM7ILV4FVCE}

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	2026-05-18T00:04:53.757987Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e130bc7c1c9071483c9467d0baf0b51116ce8f30c92f710bf27d51a152213a83

Aliases

arxiv: 1809.09300 · arxiv_version: 1809.09300v1 · doi: 10.48550/arxiv.1809.09300 · pith_short_12: 4EYLY7A4SBYU · pith_short_16: 4EYLY7A4SBYUQPEU · pith_short_8: 4EYLY7A4

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/4EYLY7A4SBYUQPEUM7ILV4FVCE \
  | 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: e130bc7c1c9071483c9467d0baf0b51116ce8f30c92f710bf27d51a152213a83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e40070c863fac6d4c2da0238c10a728d263163bae7ecc7c0e420986c13ca294",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-09-25T03:17:02Z",
    "title_canon_sha256": "88e7a8e9dd3c18e35a12f7e7b987d2df9668a9200660e48fcf655defc0c78bce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.09300",
    "kind": "arxiv",
    "version": 1
  }
}