Pith Number

pith:DUZHN7RR

pith:2019:DUZHN7RRWTY3CFL6CVM5K4GFKF

not attested not anchored not stored refs pending

Optimal illumination scheme for isotropic quantitative differential phase contrast microscopy

Chao Zuo, Jiasong Sun, Lei Tian, Qian Chen, Xiangpeng Pan, Yao Fan

arxiv:1903.10718 v1 · 2019-03-26 · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DUZHN7RRWTY3CFL6CVM5K4GFKF}

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	2026-05-17T23:50:17.931263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d3276fe31b4f1b1157e1559d570c55149b3517234f0f5f5a6ed1cb0e6b6efa8

Aliases

arxiv: 1903.10718 · arxiv_version: 1903.10718v1 · doi: 10.48550/arxiv.1903.10718 · pith_short_12: DUZHN7RRWTY3 · pith_short_16: DUZHN7RRWTY3CFL6 · pith_short_8: DUZHN7RR

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/DUZHN7RRWTY3CFL6CVM5K4GFKF \
  | 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: 1d3276fe31b4f1b1157e1559d570c55149b3517234f0f5f5a6ed1cb0e6b6efa8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c60eff484c015d20fe2e9c4e154335b68c41bdad2ecdbe4f34beded7abbfbdc4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2019-03-26T07:47:16Z",
    "title_canon_sha256": "d8e3db2b92c1d0c9b912164ea2b30814d440fa30c1f394298c9db5980a6a0c89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.10718",
    "kind": "arxiv",
    "version": 1
  }
}