Pith Number

pith:OZVXU2SN

pith:2019:OZVXU2SN2WJO7AESSCL4Z3PVQZ

not attested not anchored not stored refs pending

Some Research Problems in Biometrics: The Future Beckons

Anurag Chowdhury, Arun Ross, Cunjian Chen, Renu Sharma, Shivangi Yadav, Sudipta Banerjee, Thomas Swearingen, Vahid Mirjalili

arxiv:1905.04717 v1 · 2019-05-12 · 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{OZVXU2SN2WJO7AESSCL4Z3PVQZ}

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	2026-05-17T23:46:23.807096Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

766b7a6a4dd592ef80929097ccedf5866e69c5c84190e10dee239fc431f11efe

Aliases

arxiv: 1905.04717 · arxiv_version: 1905.04717v1 · doi: 10.48550/arxiv.1905.04717 · pith_short_12: OZVXU2SN2WJO · pith_short_16: OZVXU2SN2WJO7AES · pith_short_8: OZVXU2SN

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/OZVXU2SN2WJO7AESSCL4Z3PVQZ \
  | 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: 766b7a6a4dd592ef80929097ccedf5866e69c5c84190e10dee239fc431f11efe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a146d106ed049a9661871c865bc03f29da26c7d9f6c973dd2cdac480d008f7e",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-05-12T13:06:17Z",
    "title_canon_sha256": "91b707c1cfd46b0d5ce5fdbf6de8a7d6ca1c544ce581b64ffa3812414dde08e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.04717",
    "kind": "arxiv",
    "version": 1
  }
}