Pith Number

pith:XY4YRQCD

pith:2018:XY4YRQCDXI7MYC63QNQIIEDW3C

not attested not anchored not stored refs pending

Online Signature Verification using Deep Representation: A new Descriptor

Mahmood Fathy, Mohammad Hajizadeh Saffar, Mohammad Sabokrou, Mohsen Fayyaz

arxiv:1806.09986 v1 · 2018-06-24 · 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{XY4YRQCDXI7MYC63QNQIIEDW3C}

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	2026-05-18T00:12:22.505715Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be3988c043ba3ecc0bdb8360841076d8bdb362d0c03c903b3b3eeaabb796a388

Aliases

arxiv: 1806.09986 · arxiv_version: 1806.09986v1 · doi: 10.48550/arxiv.1806.09986 · pith_short_12: XY4YRQCDXI7M · pith_short_16: XY4YRQCDXI7MYC63 · pith_short_8: XY4YRQCD

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/XY4YRQCDXI7MYC63QNQIIEDW3C \
  | 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: be3988c043ba3ecc0bdb8360841076d8bdb362d0c03c903b3b3eeaabb796a388

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0dfe00f674d3fc40f3062c35ad70e1ee5f09f9179db9549a88746652c0c4dccb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-06-24T03:15:39Z",
    "title_canon_sha256": "a358411783afe34db25cd22c385e092df16edaee60a87e76d5d7b9dbcb202b8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.09986",
    "kind": "arxiv",
    "version": 1
  }
}