Pith Number

pith:3INI4DVA

pith:2018:3INI4DVAFEQN66NKICPZJDELFX

not attested not anchored not stored refs pending

Data-Driven Segmentation of Post-mortem Iris Images

Adam Czajka, Mateusz Trokielewicz

arxiv:1807.04154 v1 · 2018-07-11 · 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{3INI4DVAFEQN66NKICPZJDELFX}

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	2026-05-18T00:10:57.795705Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da1a8e0ea02920df79aa409f948c8b2de4960321e59a4e2645d4f3b17e020d39

Aliases

arxiv: 1807.04154 · arxiv_version: 1807.04154v1 · doi: 10.48550/arxiv.1807.04154 · pith_short_12: 3INI4DVAFEQN · pith_short_16: 3INI4DVAFEQN66NK · pith_short_8: 3INI4DVA

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/3INI4DVAFEQN66NKICPZJDELFX \
  | 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: da1a8e0ea02920df79aa409f948c8b2de4960321e59a4e2645d4f3b17e020d39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9c3f24a54e371b7b89e1c4032e8c5f947b276c0b168861d113735d589217584",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-07-11T14:21:59Z",
    "title_canon_sha256": "bc5e60e8963709215209793f533b29b79828e64c1eff64e95d5a385792aa9ddb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04154",
    "kind": "arxiv",
    "version": 1
  }
}