Pith Number

pith:MN3LCUAG

pith:2012:MN3LCUAG2DL4ZKYUISIQRQNG3Y

not attested not anchored not stored refs pending

Digital interferometric demodulation of Placido mires applied to corneal topography

Manuel Servin

arxiv:1204.2210 v3 · 2012-04-10 · physics.optics · 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{MN3LCUAG2DL4ZKYUISIQRQNG3Y}

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	2026-05-18T03:57:40.131450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6376b15006d0d7ccab14449108c1a6de27983a7f2843c407cf6aa637e1ee5797

Aliases

arxiv: 1204.2210 · arxiv_version: 1204.2210v3 · doi: 10.48550/arxiv.1204.2210 · pith_short_12: MN3LCUAG2DL4 · pith_short_16: MN3LCUAG2DL4ZKYU · pith_short_8: MN3LCUAG

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/MN3LCUAG2DL4ZKYUISIQRQNG3Y \
  | 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: 6376b15006d0d7ccab14449108c1a6de27983a7f2843c407cf6aa637e1ee5797

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1be0cd6debba33c371c8b2fb67890f48281b622e9d99516f19bbb0a68e6d1b0c",
    "cross_cats_sorted": [
      "physics.med-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-04-10T16:19:58Z",
    "title_canon_sha256": "d89450b6095410eea89f78755942cf9fb63cf32187cb0249f0afc7c4cbadd67e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2210",
    "kind": "arxiv",
    "version": 3
  }
}