Pith Number

pith:NZ7GWZ2U

pith:2011:NZ7GWZ2U6M5H3JDXONRAWBVJHF

not attested not anchored not stored refs pending

Optimal Divide and Query (extended version)

David Insa, Josep Silva

arxiv:1107.0350 v3 · 2011-07-02 · cs.SE · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NZ7GWZ2U6M5H3JDXONRAWBVJHF}

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	2026-05-18T04:16:53.220867Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e7e6b6754f33a7da47773620b06a9394e53f296ee96ce9157e3421dc76ea44e

Aliases

arxiv: 1107.0350 · arxiv_version: 1107.0350v3 · doi: 10.48550/arxiv.1107.0350 · pith_short_12: NZ7GWZ2U6M5H · pith_short_16: NZ7GWZ2U6M5H3JDX · pith_short_8: NZ7GWZ2U

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/NZ7GWZ2U6M5H3JDXONRAWBVJHF \
  | 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: 6e7e6b6754f33a7da47773620b06a9394e53f296ee96ce9157e3421dc76ea44e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60a788c819b0694a161fd524d12049bf8de1668f75bcb134deda8473ef48ea8b",
    "cross_cats_sorted": [
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2011-07-02T01:35:07Z",
    "title_canon_sha256": "0cead433fd31b116ed66b4fa2dfa6cce112d58dee941a79406b8687933dc96ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.0350",
    "kind": "arxiv",
    "version": 3
  }
}