Pith Number

pith:MJECVU66

pith:2017:MJECVU663KWJIMHX7CJLH67RLE

not attested not anchored not stored refs pending

SigNet: Convolutional Siamese Network for Writer Independent Offline Signature Verification

Anjan Dutta, J. Ignacio Toledo, Josep Llados, Sounak Dey, Suman K. Ghosh, Umapada Pal

arxiv:1707.02131 v2 · 2017-07-07 · cs.CV

Open paper page JSON What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-18T00:33:58.799158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

62482ad3dedaac9430f7f892b3fbf159228a3ec19ed9fbac890042f11d6b000b

Aliases

arxiv: 1707.02131 · arxiv_version: 1707.02131v2 · doi: 10.48550/arxiv.1707.02131

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/MJECVU663KWJIMHX7CJLH67RLE \
  | 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: 62482ad3dedaac9430f7f892b3fbf159228a3ec19ed9fbac890042f11d6b000b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84ae1e52220b5b26feb4defb17b21c4bf7d5c408fba8c22d5dd53b131e809b57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-07-07T11:56:51Z",
    "title_canon_sha256": "279cc323885d3561a5725b59fb0f7c9d13ffb5b97e9f67cc6e820029b814f5cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.02131",
    "kind": "arxiv",
    "version": 2
  }
}