Pith Number

pith:XGPIZ7SS

pith:2022:XGPIZ7SSUXS5LLPU5P6TZ2RL6G

not attested not anchored not stored refs pending

SWIS: Self-Supervised Representation Learning For Writer Independent Offline Signature Verification

Saumik Bhattacharya, Siladittya Manna, Soumitri Chattopadhyay, Umapada Pal

arxiv:2202.13078 v2 · 2022-02-26 · cs.CV · cs.LG · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XGPIZ7SSUXS5LLPU5P6TZ2RL6G}

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	2026-07-05T04:39:31.047636Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b99e8cfe52a5e5d5adf4ebfd3cea2bf191da7d8636ef9b6809b718a741171496

Aliases

arxiv: 2202.13078 · arxiv_version: 2202.13078v2 · doi: 10.48550/arxiv.2202.13078 · pith_short_12: XGPIZ7SSUXS5 · pith_short_16: XGPIZ7SSUXS5LLPU · pith_short_8: XGPIZ7SS

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/XGPIZ7SSUXS5LLPU5P6TZ2RL6G \
  | 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: b99e8cfe52a5e5d5adf4ebfd3cea2bf191da7d8636ef9b6809b718a741171496

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24a2abe0cfc1118de85e8d7b27e48dd8f131bd4d49b23bd732bbdfa8cba664d8",
    "cross_cats_sorted": [
      "cs.LG",
      "eess.IV"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-02-26T06:33:25Z",
    "title_canon_sha256": "cbe5650b9d02ed3cdda912296eb8bdcf113b7503490123bfb2c6e0c438c23991"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.13078",
    "kind": "arxiv",
    "version": 2
  }
}