Pith Number

pith:KUOC63DA

pith:2014:KUOC63DA2DFHS5UF5ZE46A25C2

not attested not anchored not stored refs pending

On the Hardness of Signaling

Shaddin Dughmi

arxiv:1402.4194 v4 · 2014-02-18 · cs.GT · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KUOC63DA2DFHS5UF5ZE46A25C2}

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	2026-05-18T02:47:15.610377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

551c2f6c60d0ca797685ee49cf035d1686d5c0646c83bd9d140da6b2dd811dd6

Aliases

arxiv: 1402.4194 · arxiv_version: 1402.4194v4 · doi: 10.48550/arxiv.1402.4194 · pith_short_12: KUOC63DA2DFH · pith_short_16: KUOC63DA2DFHS5UF · pith_short_8: KUOC63DA

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/KUOC63DA2DFHS5UF5ZE46A25C2 \
  | 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: 551c2f6c60d0ca797685ee49cf035d1686d5c0646c83bd9d140da6b2dd811dd6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e82b99995fd4c4c6553b4fed1657c39cce9ba6801c2f9332c38f886fa11f64e",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2014-02-18T00:43:23Z",
    "title_canon_sha256": "a2a8a517c958ad2d343c0e4f9a458b79ca9c30d6ff0b09b4517c2c3aa5ef6f39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.4194",
    "kind": "arxiv",
    "version": 4
  }
}