Pith Number

pith:2DVM7G7T

pith:2018:2DVM7G7TRBEEKTKLEZVTY4FCRR

not attested not anchored not stored refs pending

Hybrid Feature Learning for Handwriting Verification

Jun Chu, Mihir Chauhan, Mohammad Abuzar Shaikh, Sargur Srihari

arxiv:1812.02621 v1 · 2018-11-19 · 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{2DVM7G7TRBEEKTKLEZVTY4FCRR}

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	2026-07-05T00:09:59.240159Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0eacf9bf38848454d4b266b3c70a28c5a0c17c41dc46356a10421d66bab6b9e

Aliases

arxiv: 1812.02621 · arxiv_version: 1812.02621v1 · doi: 10.48550/arxiv.1812.02621 · pith_short_12: 2DVM7G7TRBEE · pith_short_16: 2DVM7G7TRBEEKTKL · pith_short_8: 2DVM7G7T

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/2DVM7G7TRBEEKTKLEZVTY4FCRR \
  | 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: d0eacf9bf38848454d4b266b3c70a28c5a0c17c41dc46356a10421d66bab6b9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d4257ac0bb9cd07835bc6cbb7f4b7267c758504a3afa06d74d9c7f1af416bd9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-11-19T02:02:28Z",
    "title_canon_sha256": "5aa4db2dfae10f1a34499fa4a1a735b503c31b609e06e6b05dcb275350558ab3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.02621",
    "kind": "arxiv",
    "version": 1
  }
}