Pith Number

pith:PASPDOBV

pith:2007:PASPDOBVHHXIXROZFZRH7FUILW

not attested not anchored not stored refs pending

Using Images to create a Hierarchical Grid Spatial Index

Lukasz A. Machowski, Tshilidzi Marwala

arxiv:0705.0204 v1 · 2007-05-02 · 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{PASPDOBVHHXIXROZFZRH7FUILW}

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	2026-05-18T00:58:26.143081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7824f1b83539ee8bc5d92e627f96885d93b4970a2f2d14f0d90ac53cc3947bac

Aliases

arxiv: 0705.0204 · arxiv_version: 0705.0204v1 · doi: 10.48550/arxiv.0705.0204 · pith_short_12: PASPDOBVHHXI · pith_short_16: PASPDOBVHHXIXROZ · pith_short_8: PASPDOBV

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/PASPDOBVHHXIXROZFZRH7FUILW \
  | 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: 7824f1b83539ee8bc5d92e627f96885d93b4970a2f2d14f0d90ac53cc3947bac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3432ceef9d648f618937bf329836294315b6c759c59f601075d101abdd2056a9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.DS",
    "submitted_at": "2007-05-02T05:37:32Z",
    "title_canon_sha256": "eb8d4ff16df4c7689d6316e3355244b9680d832d7cb56e584d3b36deba4011f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.0204",
    "kind": "arxiv",
    "version": 1
  }
}