Pith Number

pith:L6U63SOX

pith:2018:L6U63SOXYTYD7YKFAP3QMODSJY

not attested not anchored not stored refs pending

The Impact of Preprocessing on Deep Representations for Iris Recognition on Unconstrained Environments

Alceu S. Britto Jr., David Menotti, Eduardo Luz, Luiz A. Zanlorensi, Luiz S. Oliveira, Rayson Laroca

arxiv:1808.10032 v1 · 2018-08-29 · 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{L6U63SOXYTYD7YKFAP3QMODSJY}

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	2026-05-17T23:56:05.233385Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fa9edc9d7c4f03fe14503f70638724e39c61ef6672a9ca582452d6b2938dff6

Aliases

arxiv: 1808.10032 · arxiv_version: 1808.10032v1 · doi: 10.48550/arxiv.1808.10032 · pith_short_12: L6U63SOXYTYD · pith_short_16: L6U63SOXYTYD7YKF · pith_short_8: L6U63SOX

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/L6U63SOXYTYD7YKFAP3QMODSJY \
  | 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: 5fa9edc9d7c4f03fe14503f70638724e39c61ef6672a9ca582452d6b2938dff6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "980011f98e8baded745dd2889193ff775060b1b0b3a9009a5fff5db602cf7e0b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-08-29T20:22:41Z",
    "title_canon_sha256": "b73f8fee13fb54f186581d62bdd34e5df0a4a3d91220093978ce68fbd30febe7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.10032",
    "kind": "arxiv",
    "version": 1
  }
}