Pith Number

pith:R227Q7GL

pith:2011:R227Q7GLUWHSTERDHIFVJFU5SI

not attested not anchored not stored refs pending

Fully Retroactive Approximate Range and Nearest Neighbor Searching

Joseph A. Simons, Michael T. Goodrich

arxiv:1109.0312 v1 · 2011-09-01 · cs.CG · 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{R227Q7GLUWHSTERDHIFVJFU5SI}

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	2026-05-18T04:14:16.057513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8eb5f87ccba58f2992233a0b54969d9218d0537413163a1ee4bb687b72b3af93

Aliases

arxiv: 1109.0312 · arxiv_version: 1109.0312v1 · doi: 10.48550/arxiv.1109.0312 · pith_short_12: R227Q7GLUWHS · pith_short_16: R227Q7GLUWHSTERD · pith_short_8: R227Q7GL

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/R227Q7GLUWHSTERDHIFVJFU5SI \
  | 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: 8eb5f87ccba58f2992233a0b54969d9218d0537413163a1ee4bb687b72b3af93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70ffd29b104da9f86b7ac4ca31769c986036456b157c51b7ec1e298b91a1d98e",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2011-09-01T21:57:42Z",
    "title_canon_sha256": "e2aeff502a70a42596a0b5ad971888c15750f51c65f91a928168dbc3375675f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.0312",
    "kind": "arxiv",
    "version": 1
  }
}