Pith Number

pith:LDWR7YEC

pith:2019:LDWR7YECRKTITV4AD5VKFOU6QZ

not attested not anchored not stored refs pending

An algorithm for destroying claws and diamonds

Dekel Tsur

arxiv:1908.07318 v1 · 2019-08-20 · 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{LDWR7YECRKTITV4AD5VKFOU6QZ}

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	2026-07-04T23:58:33.208460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58ed1fe0828aa689d7801f6aa2ba9e866631fc27682074744bc4edabbc242eb3

Aliases

arxiv: 1908.07318 · arxiv_version: 1908.07318v1 · doi: 10.48550/arxiv.1908.07318 · pith_short_12: LDWR7YECRKTI · pith_short_16: LDWR7YECRKTITV4A · pith_short_8: LDWR7YEC

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/LDWR7YECRKTITV4AD5VKFOU6QZ \
  | 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: 58ed1fe0828aa689d7801f6aa2ba9e866631fc27682074744bc4edabbc242eb3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1b421fe9a3df9c3ec459e40c40b8d81891b0a42c70954b82e215e2c1de6f6f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-08-20T13:02:03Z",
    "title_canon_sha256": "d9275362ba3904825b064d0cc2d91f22452c2978cf39b0626e43374c994689c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.07318",
    "kind": "arxiv",
    "version": 1
  }
}