Pith Number

pith:PSY7NLNW

pith:2017:PSY7NLNWALP35VIOLYRLAUE5VX

not attested not anchored not stored refs pending

Learning Features for Offline Handwritten Signature Verification using Deep Convolutional Neural Networks

Luiz G. Hafemann, Luiz S. Oliveira, Robert Sabourin

arxiv:1705.05787 v1 · 2017-05-16 · 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{PSY7NLNWALP35VIOLYRLAUE5VX}

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	2026-05-18T00:44:20.162838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cb1f6adb602dfbed50e5e22b0509dadf78c8e0ab6f398417f909d6fe8a589eb

Aliases

arxiv: 1705.05787 · arxiv_version: 1705.05787v1 · doi: 10.48550/arxiv.1705.05787 · pith_short_12: PSY7NLNWALP3 · pith_short_16: PSY7NLNWALP35VIO · pith_short_8: PSY7NLNW

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/PSY7NLNWALP35VIOLYRLAUE5VX \
  | 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: 7cb1f6adb602dfbed50e5e22b0509dadf78c8e0ab6f398417f909d6fe8a589eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c310eeade3b6817f6f9f138338d9d354313e4bd13696012605d8077f10d717b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-05-16T16:08:09Z",
    "title_canon_sha256": "66a295cd8b29a70cc6fb62c08a235a89a86cfc6de466673103c953fb9729f764"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.05787",
    "kind": "arxiv",
    "version": 1
  }
}