Pith Number

pith:CSOHASPF

pith:2019:CSOHASPFXAMODC45JNFIP5VD3C

not attested not anchored not stored refs pending

Supporting dry eye diagnosis with a new method for non-invasive tear film quality assessment

Clara Llorens-Quintana, Dorota H. Szczesna-Iskander, D. Robert Iskander

arxiv:1902.04946 v1 · 2019-02-13 · 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{CSOHASPFXAMODC45JNFIP5VD3C}

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	2026-05-17T23:54:03.825544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

149c7049e5b818e18b9d4b4a87f6a3d895a3bbf591245ea675b4f5f4f8e4df75

Aliases

arxiv: 1902.04946 · arxiv_version: 1902.04946v1 · doi: 10.48550/arxiv.1902.04946 · pith_short_12: CSOHASPFXAMO · pith_short_16: CSOHASPFXAMODC45 · pith_short_8: CSOHASPF

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/CSOHASPFXAMODC45JNFIP5VD3C \
  | 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: 149c7049e5b818e18b9d4b4a87f6a3d895a3bbf591245ea675b4f5f4f8e4df75

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "703f94eee35e8b50e64b69a049052dba4258aac5784839fe370742619a9211eb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2019-02-13T15:18:35Z",
    "title_canon_sha256": "549b0b3fcb7b22cb52a1c9301ecb506b1e0672f5e8d6108e2800e6110b82d011"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.04946",
    "kind": "arxiv",
    "version": 1
  }
}