Pith Number

pith:F2KXHGPM

pith:2021:F2KXHGPMOS3ZAWUBGVJ6YNEFWU

not attested not anchored not stored refs pending

Biometrics in the Era of COVID-19: Challenges and Opportunities

Andras Nautsch, Christian Rathgeb, Christoph Busch, Jannis Priesnitz, Jose Patino, Marta Gomez-Barrero, Massimmiliano Todisco, Naser Damer, Nicholas Evans, Pawel Drozdowski

arxiv:2102.09258 v2 · 2021-02-18 · cs.CY · cs.CR · cs.CV · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F2KXHGPMOS3ZAWUBGVJ6YNEFWU}

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	2026-07-05T04:39:16.413059Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e957399ec74b7905a813553ec3485b53a42cbee53684034a592dbb33fad8caa

Aliases

arxiv: 2102.09258 · arxiv_version: 2102.09258v2 · doi: 10.48550/arxiv.2102.09258 · pith_short_12: F2KXHGPMOS3Z · pith_short_16: F2KXHGPMOS3ZAWUB · pith_short_8: F2KXHGPM

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/F2KXHGPMOS3ZAWUBGVJ6YNEFWU \
  | 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: 2e957399ec74b7905a813553ec3485b53a42cbee53684034a592dbb33fad8caa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e2d487aff2510d47f10e6d0c086e3d302739b62e07fee301df8d9cf64c125c5",
    "cross_cats_sorted": [
      "cs.CR",
      "cs.CV",
      "cs.HC"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2021-02-18T10:32:59Z",
    "title_canon_sha256": "94bd6341e13a6d53b9a5323f84c37c0956ce2a502e4df0d2bc39b2c9333e5c2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.09258",
    "kind": "arxiv",
    "version": 2
  }
}