Pith Number

pith:2I4URYPF

pith:2019:2I4URYPFA5HKQYS6UOPZ7NIPMV

not attested not anchored not stored refs pending

Review on methods of solving the refractive index-thickness coupling problem in digital holographic microscopy of biological cells

Gili Dardikman, Natan T. Shaked

arxiv:1904.01449 v1 · 2019-04-02 · physics.optics · physics.bio-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{2I4URYPFA5HKQYS6UOPZ7NIPMV}

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	2026-05-17T23:49:34.594294Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d23948e1e5074ea8625ea39f9fb50f654fca1f3fd2903403acf0812e7a36d202

Aliases

arxiv: 1904.01449 · arxiv_version: 1904.01449v1 · doi: 10.48550/arxiv.1904.01449 · pith_short_12: 2I4URYPFA5HK · pith_short_16: 2I4URYPFA5HKQYS6 · pith_short_8: 2I4URYPF

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/2I4URYPFA5HKQYS6UOPZ7NIPMV \
  | 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: d23948e1e5074ea8625ea39f9fb50f654fca1f3fd2903403acf0812e7a36d202

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb70287b17d04f1d0e29efb0548ebceff2b9410183bf5ba851a726a0871f3768",
    "cross_cats_sorted": [
      "physics.bio-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-04-02T14:14:54Z",
    "title_canon_sha256": "e8214d84ce94f4278311034b6be7c4b45b7b6c1b40fe511cb75f7335915304a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01449",
    "kind": "arxiv",
    "version": 1
  }
}