Pith Number

pith:4ADURNAA

pith:2011:4ADURNAAIJFUBZGDNWZ6CVI6CS

not attested not anchored not stored refs pending

A Directional Feature with Energy based Offline Signature Verification Network

Minal Tomar, Pratibha Singh

arxiv:1103.1205 v1 · 2011-03-07 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4ADURNAAIJFUBZGDNWZ6CVI6CS}

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	2026-05-18T04:27:16.926774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e00748b400424b40e4c36db3e1551e148ec9355da0a8f388741c2849c4567c5b

Aliases

arxiv: 1103.1205 · arxiv_version: 1103.1205v1 · doi: 10.48550/arxiv.1103.1205 · pith_short_12: 4ADURNAAIJFU · pith_short_16: 4ADURNAAIJFUBZGD · pith_short_8: 4ADURNAA

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/4ADURNAAIJFUBZGDNWZ6CVI6CS \
  | 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: e00748b400424b40e4c36db3e1551e148ec9355da0a8f388741c2849c4567c5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8956c328e2d6d22c2c059eab0be9baf08a388c4a5d7490ba0dbc3141b19feb64",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2011-03-07T07:17:13Z",
    "title_canon_sha256": "9e060fce648dadb613ffda1013e7018f2209b0654277c82bb81b81ce80f0bde5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.1205",
    "kind": "arxiv",
    "version": 1
  }
}