Pith Number

pith:43WQREHH

pith:2012:43WQREHHWYLCFOS7WQHRWGAIJL

not attested not anchored not stored refs pending

Search Me If You Can: Privacy-preserving Location Query Service

Taeho Jung, Xiang-Yang Li

arxiv:1208.0107 v3 · 2012-08-01 · cs.CR · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{43WQREHHWYLCFOS7WQHRWGAIJL}

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	2026-05-18T01:26:25.763328Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6ed0890e7b61622ba5fb40f1b18084ace66ab419a3a2130985fa4e56eb79b13

Aliases

arxiv: 1208.0107 · arxiv_version: 1208.0107v3 · doi: 10.48550/arxiv.1208.0107 · pith_short_12: 43WQREHHWYLC · pith_short_16: 43WQREHHWYLCFOS7 · pith_short_8: 43WQREHH

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/43WQREHHWYLCFOS7WQHRWGAIJL \
  | 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: e6ed0890e7b61622ba5fb40f1b18084ace66ab419a3a2130985fa4e56eb79b13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ff429cde9750f9386873a7612c34414a7d01dc1ee1d5c91f5857febe8c0dc8d",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2012-08-01T05:56:57Z",
    "title_canon_sha256": "2f576e80623bb1ae8aa8c388915b6767285d838c9dc6f3507b63782f02f4dbf6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0107",
    "kind": "arxiv",
    "version": 3
  }
}