Pith Number

pith:GJAYAQLN

pith:2018:GJAYAQLNO4SCNAF2YKHW5DRO44

not attested not anchored not stored refs pending

Fixed-sized representation learning from Offline Handwritten Signatures of different sizes

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

arxiv:1804.00448 v2 · 2018-04-02 · cs.CV · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GJAYAQLNO4SCNAF2YKHW5DRO44}

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	2026-05-18T00:17:37.983826Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

324180416d77242680bac28f6e8e2ee70fdd5560190d4f5db0c86bf74c042edc

Aliases

arxiv: 1804.00448 · arxiv_version: 1804.00448v2 · doi: 10.48550/arxiv.1804.00448 · pith_short_12: GJAYAQLNO4SC · pith_short_16: GJAYAQLNO4SCNAF2 · pith_short_8: GJAYAQLN

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/GJAYAQLNO4SCNAF2YKHW5DRO44 \
  | 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: 324180416d77242680bac28f6e8e2ee70fdd5560190d4f5db0c86bf74c042edc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "476654a42176c6612769eb0d860d72505b4746562ed3af6ed8cf282b664161a7",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-04-02T11:07:01Z",
    "title_canon_sha256": "c80d57e604cd6115fb5a03f7359a50b049f8354fdd9ee70ea8e5ff889b4c7e21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.00448",
    "kind": "arxiv",
    "version": 2
  }
}