Pith Number

pith:E4ABG3ZX

pith:2019:E4ABG3ZXNDPAP56WUIGXK24NFE

not attested not anchored not stored refs pending

OSVNet: Convolutional Siamese Network for Writer Independent Online Signature Verification

Chandra Sekhar, Devanur S Guru, Prerana Mukherjee, Viswanath Pulabaigari

arxiv:1904.00240 v2 · 2019-03-30 · 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{E4ABG3ZXNDPAP56WUIGXK24NFE}

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	2026-05-17T23:45:44.219192Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2700136f3768de07f7d6a20d756b8d292c4d39de6e8d6f5f369a55937d4eb998

Aliases

arxiv: 1904.00240 · arxiv_version: 1904.00240v2 · doi: 10.48550/arxiv.1904.00240 · pith_short_12: E4ABG3ZXNDPA · pith_short_16: E4ABG3ZXNDPAP56W · pith_short_8: E4ABG3ZX

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/E4ABG3ZXNDPAP56WUIGXK24NFE \
  | 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: 2700136f3768de07f7d6a20d756b8d292c4d39de6e8d6f5f369a55937d4eb998

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "569eff164810612be06d9422bf697c2b1915d10ccd277cc1b50c9999567f3df8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-03-30T16:07:59Z",
    "title_canon_sha256": "9ac4286ea5ddaef1b41698f636cd16a6181a1606ac996b1681c051533fb001f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.00240",
    "kind": "arxiv",
    "version": 2
  }
}