Pith Number

pith:WHQEV6XJ

pith:2012:WHQEV6XJIBULLILMNJ7BOBQV6I

not attested not anchored not stored refs pending

Two Approaches to the Construction of Deletion Correcting Codes: Weight Partitioning and Optimal Colorings

Ankur A. Kulkarni, Daniel Cullina, Negar Kiyavash

arxiv:1211.4056 v1 · 2012-11-16 · cs.IT · cs.DM · 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{WHQEV6XJIBULLILMNJ7BOBQV6I}

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	2026-05-18T03:40:28.157624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1e04afae94068b5a16c6a7e170615f20ec91e059000622600352ff30d2e7efd

Aliases

arxiv: 1211.4056 · arxiv_version: 1211.4056v1 · doi: 10.48550/arxiv.1211.4056 · pith_short_12: WHQEV6XJIBUL · pith_short_16: WHQEV6XJIBULLILM · pith_short_8: WHQEV6XJ

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/WHQEV6XJIBULLILMNJ7BOBQV6I \
  | 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: b1e04afae94068b5a16c6a7e170615f20ec91e059000622600352ff30d2e7efd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58935a71631552cd9d2e43ae8e3de860a733c9937543c6f586eb19113b180dd8",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-11-16T22:30:24Z",
    "title_canon_sha256": "36c3d294d5d4446651f123ca540d789f0c4b4f3817aa3ef457d0248e182a422e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4056",
    "kind": "arxiv",
    "version": 1
  }
}