Pith Number

pith:MYH2C63L

pith:2019:MYH2C63LALIFSDPDJ75AWRPY7P

not attested not anchored not stored refs pending

Assessment of tear film using videokeratoscopy based on fractal dimension

Clara Llorens-Quintana, D. Robert Iskander

arxiv:1902.05072 v1 · 2019-02-13 · physics.med-ph · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MYH2C63LALIFSDPDJ75AWRPY7P}

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	2026-05-17T23:54:01.962610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

660fa17b6b02d0590de34ffa0b45f8fbe1716df582e852fe4146d9ebe6b046c1

Aliases

arxiv: 1902.05072 · arxiv_version: 1902.05072v1 · doi: 10.48550/arxiv.1902.05072 · pith_short_12: MYH2C63LALIF · pith_short_16: MYH2C63LALIFSDPD · pith_short_8: MYH2C63L

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/MYH2C63LALIFSDPDJ75AWRPY7P \
  | 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: 660fa17b6b02d0590de34ffa0b45f8fbe1716df582e852fe4146d9ebe6b046c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ee699cf4c5870179a4a53a8ceef5a59a9f0a36094bd163d7b246a07628dc151",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2019-02-13T14:52:56Z",
    "title_canon_sha256": "327705096ccd0429fc5798552ef37e69de009559612b777671b4b39e1a3a27ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05072",
    "kind": "arxiv",
    "version": 1
  }
}