Pith Number

pith:A7FSUUM2

pith:2025:A7FSUUM2XFTTGFHTXFEGYYBLLS

not attested not anchored not stored refs pending

Random Sampling over Spatial Range Joins

Daichi Amagata

arxiv:2508.15070 v1 · 2025-08-20 · 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{A7FSUUM2XFTTGFHTXFEGYYBLLS}

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	2026-07-05T11:57:06.015154Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07cb2a519ab9673314f3b9486c602b5c9000d990ccb02157bf1403a0839172c7

Aliases

arxiv: 2508.15070 · arxiv_version: 2508.15070v1 · doi: 10.48550/arxiv.2508.15070 · pith_short_12: A7FSUUM2XFTT · pith_short_16: A7FSUUM2XFTTGFHT · pith_short_8: A7FSUUM2

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/A7FSUUM2XFTTGFHTXFEGYYBLLS \
  | 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: 07cb2a519ab9673314f3b9486c602b5c9000d990ccb02157bf1403a0839172c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1cb82ed593fea63ca35c6ccd572be7c77a7da6409a1592cf6947220193f8e99",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2025-08-20T21:13:18Z",
    "title_canon_sha256": "4193a3dbad35eebc6721bff67cd2bddc87aad9713b6967ff2794222859fd83e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.15070",
    "kind": "arxiv",
    "version": 1
  }
}