Pith Number

pith:3U2JZ2ZE

pith:2019:3U2JZ2ZE3YE2QZAX2JDC5RVKYF

not attested not anchored not stored refs pending

Measuring the Correlation of Personal Identity Documents in Structured Format

Chamin Wickramarathna, Chanaka Lakmal, Chandu Herath, Gihan Dias, Sachithra Dangalla, Shantha Fernando

arxiv:1901.02146 v2 · 2019-01-08 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3U2JZ2ZE3YE2QZAX2JDC5RVKYF}

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	2026-07-05T03:30:49.270123Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd349ceb24de09a86417d2462ec6aac15dbfe035236ae5956bab985856b85e6c

Aliases

arxiv: 1901.02146 · arxiv_version: 1901.02146v2 · doi: 10.48550/arxiv.1901.02146 · pith_short_12: 3U2JZ2ZE3YE2 · pith_short_16: 3U2JZ2ZE3YE2QZAX · pith_short_8: 3U2JZ2ZE

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/3U2JZ2ZE3YE2QZAX2JDC5RVKYF \
  | 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: dd349ceb24de09a86417d2462ec6aac15dbfe035236ae5956bab985856b85e6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5429bf573044a21500e5b34553822f343c2352a6baeaf78bfe370da319a3ba10",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2019-01-08T03:55:53Z",
    "title_canon_sha256": "b8078be7dfb09cbe7c500db3a7254a0e5d6a17a6d6c629c0f414ac412e33472f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.02146",
    "kind": "arxiv",
    "version": 2
  }
}