Pith Number

pith:4A3Q74MB

pith:2019:4A3Q74MBMZDKEPNLOLOYXZ4FJA

not attested not anchored not stored refs pending

Keratoconus Recognition Using A Parameter Set Determined from IOP-Matched Scenario

Dan Lin, Lei Tian, Like Wang, Shu Zhang, Yongjin Zhou

arxiv:1901.01789 v1 · 2019-01-07 · physics.med-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4A3Q74MBMZDKEPNLOLOYXZ4FJA}

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	2026-05-17T23:56:51.241936Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0370ff1816646a23dab72dd8be785482eabb8b3c169bbc18ab17bdc709c4471

Aliases

arxiv: 1901.01789 · arxiv_version: 1901.01789v1 · doi: 10.48550/arxiv.1901.01789 · pith_short_12: 4A3Q74MBMZDK · pith_short_16: 4A3Q74MBMZDKEPNL · pith_short_8: 4A3Q74MB

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/4A3Q74MBMZDKEPNLOLOYXZ4FJA \
  | 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: e0370ff1816646a23dab72dd8be785482eabb8b3c169bbc18ab17bdc709c4471

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66fe6c5c64fc8eb930abecd4885a7cc6042bde97caaef24a0ce8787f9959cf47",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2019-01-07T13:14:29Z",
    "title_canon_sha256": "2f53c251d344453adf687c8968edeb255cdff48988f7fe7b97e8a71ddf0f18ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.01789",
    "kind": "arxiv",
    "version": 1
  }
}