Pith Number

pith:U2LE6UP5

pith:2022:U2LE6UP5FAOHJ5UE5U2GFDDH4K

not attested not anchored not stored refs pending

Identity Documents Authentication based on Forgery Detection of Guilloche Pattern

Jean-Christophe Burie, Musab Al-Ghadi, Petra Gomez-Kr\"amer, Zuheng Ming

arxiv:2206.10989 v1 · 2022-06-22 · cs.CV · 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{U2LE6UP5FAOHJ5UE5U2GFDDH4K}

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	2026-07-05T04:34:07.840403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6964f51fd281c74f684ed34628c67e2b8b13ddd356cce545211dcd2a7e66f05

Aliases

arxiv: 2206.10989 · arxiv_version: 2206.10989v1 · doi: 10.48550/arxiv.2206.10989 · pith_short_12: U2LE6UP5FAOH · pith_short_16: U2LE6UP5FAOHJ5UE · pith_short_8: U2LE6UP5

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/U2LE6UP5FAOHJ5UE5U2GFDDH4K \
  | 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: a6964f51fd281c74f684ed34628c67e2b8b13ddd356cce545211dcd2a7e66f05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "132a307704cb966cc2b52f2d89976a96edc8c7b1e26b4aecfd9171fefdae039c",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-06-22T11:37:10Z",
    "title_canon_sha256": "825c77079237e0cd8690506d62175aab1230a8c5a9d24fa42acc57306d7b8305"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.10989",
    "kind": "arxiv",
    "version": 1
  }
}