Pith Number

pith:CAY2O45Z

pith:2014:CAY2O45ZYPWITYB23ISRAAOJIR

not attested not anchored not stored refs pending

Efficient classification of billions of points into complex geographic regions using hierarchical triangular mesh

Alexander S. Szalay, Andr\'as Bodor, D\'aniel Kondor, G\'abor Vattay, Istv\'an Csabai, L\'aszl\'o Dobos, Tam\'as Budav\'ari

arxiv:1410.0709 v1 · 2014-10-02 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CAY2O45ZYPWITYB23ISRAAOJIR}

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	2026-05-18T02:41:09.809023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1031a773b9c3ec89e03ada251001c9447bb3569cea8a7abadc0aff30240b89bf

Aliases

arxiv: 1410.0709 · arxiv_version: 1410.0709v1 · doi: 10.48550/arxiv.1410.0709 · pith_short_12: CAY2O45ZYPWI · pith_short_16: CAY2O45ZYPWITYB2 · pith_short_8: CAY2O45Z

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/CAY2O45ZYPWITYB23ISRAAOJIR \
  | 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: 1031a773b9c3ec89e03ada251001c9447bb3569cea8a7abadc0aff30240b89bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15cc76d497f267d21ed4ff08b564dec612926eaff3b189490b73b1e0141b27a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2014-10-02T20:50:14Z",
    "title_canon_sha256": "e7efdcdef9e1a775367242200e04e3aba14cddf9ad01ee6fe13d5eec35867f6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.0709",
    "kind": "arxiv",
    "version": 1
  }
}