Pith Number

pith:U7BUFBTH

pith:2023:U7BUFBTHMEGZW5M2WMR47O2WXC

not attested not anchored not stored refs pending

Deep Features for Contactless Fingerprint Presentation Attack Detection: Can They Be Generalized?

Hailin Li, Raghavendra Ramachandra

arxiv:2307.01845 v1 · 2023-07-04 · 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{U7BUFBTHMEGZW5M2WMR47O2WXC}

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	2026-07-05T06:28:01.655142Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7c3428667610d9b759ab323cfbb56b8a816964fffe978cab8f2bc934d67fff6

Aliases

arxiv: 2307.01845 · arxiv_version: 2307.01845v1 · doi: 10.48550/arxiv.2307.01845 · pith_short_12: U7BUFBTHMEGZ · pith_short_16: U7BUFBTHMEGZW5M2 · pith_short_8: U7BUFBTH

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/U7BUFBTHMEGZW5M2WMR47O2WXC \
  | 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: a7c3428667610d9b759ab323cfbb56b8a816964fffe978cab8f2bc934d67fff6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec2b439a0c057fbe4a5dbb10396507a0b0c98210863133360999b9454ba7eace",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2023-07-04T17:46:20Z",
    "title_canon_sha256": "d02b50efeb84cac95cd8249ad9e3cbcdbb124bf420fb46a08d59be5ca9cc2dc9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.01845",
    "kind": "arxiv",
    "version": 1
  }
}