Pith Number

pith:LNUFTFEU

pith:2016:LNUFTFEUXB7SUMWU3Y2B4PHPHI

not attested not anchored not stored refs pending

Classification and Verification of Online Handwritten Signatures with Time Causal Information Theory Quantifiers

Alejandro C. Frery, Osvaldo A. Rosso, Raydonal Ospina

arxiv:1601.06925 v1 · 2016-01-26 · cs.IT · cs.CV · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LNUFTFEUXB7SUMWU3Y2B4PHPHI}

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	2026-05-18T00:51:18.021819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b68599494b87f2a32d4de341e3cef3a1cd032fc9a32ace3a6d4126a84beba18

Aliases

arxiv: 1601.06925 · arxiv_version: 1601.06925v1 · doi: 10.48550/arxiv.1601.06925 · pith_short_12: LNUFTFEUXB7S · pith_short_16: LNUFTFEUXB7SUMWU · pith_short_8: LNUFTFEU

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/LNUFTFEUXB7SUMWU3Y2B4PHPHI \
  | 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: 5b68599494b87f2a32d4de341e3cef3a1cd032fc9a32ace3a6d4126a84beba18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb4482dffd0848e30091a3881e6bc58888db10251efa7e7147bc560483939766",
    "cross_cats_sorted": [
      "cs.CV",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-01-26T08:40:55Z",
    "title_canon_sha256": "fdc9f1111b528e381b4cdcd032152d7201e55a51274d29959314ed1ace0be3c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.06925",
    "kind": "arxiv",
    "version": 1
  }
}