Pith Number

pith:PMBKHVYR

pith:2018:PMBKHVYRZSNJMF6N44RXXISBAO

not attested not anchored not stored refs pending

DocFace+: ID Document to Selfie Matching

Anil K. Jain, Yichun Shi

arxiv:1809.05620 v2 · 2018-09-15 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PMBKHVYRZSNJMF6N44RXXISBAO}

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	2026-05-18T00:05:27.472548Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b02a3d711cc9a9617cde7237ba241038ab9600a9f2caf3a5c20571e77b38fda

Aliases

arxiv: 1809.05620 · arxiv_version: 1809.05620v2 · doi: 10.48550/arxiv.1809.05620 · pith_short_12: PMBKHVYRZSNJ · pith_short_16: PMBKHVYRZSNJMF6N · pith_short_8: PMBKHVYR

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/PMBKHVYRZSNJMF6N44RXXISBAO \
  | 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: 7b02a3d711cc9a9617cde7237ba241038ab9600a9f2caf3a5c20571e77b38fda

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b7515fe24b7b27e481ddd62ef415b5ed70364139dcae00ad33dbb50367929e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-09-15T00:31:44Z",
    "title_canon_sha256": "496bbbecdaed7f6c7c391867ef33c9917a0f3ed72f8c46a8b5e93d271280697c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.05620",
    "kind": "arxiv",
    "version": 2
  }
}