Pith Number

pith:6UBTQJ6U

pith:2019:6UBTQJ6UM33EUDHCQMVRD2ZGQA

not attested not anchored not stored refs pending

Wide-field, high-resolution lensless on-chip microscopy via near-field blind ptychographic modulation

Chengfei Guo, Guoan Zheng, He Zhang, Jiakai Zhu, Pengming Song, Ruihai Wang, Shaowei Jiang, Shiyao Wang, Yikun Huang, Zichao Bian

arxiv:1910.03031 v3 · 2019-10-04 · eess.IV · physics.ins-det · 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{6UBTQJ6UM33EUDHCQMVRD2ZGQA}

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	2026-07-05T00:40:14.921812Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5033827d466f64a0ce2832b11eb26802048c5397d4a61757a7f2cd1ec11bd95

Aliases

arxiv: 1910.03031 · arxiv_version: 1910.03031v3 · doi: 10.48550/arxiv.1910.03031 · pith_short_12: 6UBTQJ6UM33E · pith_short_16: 6UBTQJ6UM33EUDHC · pith_short_8: 6UBTQJ6U

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/6UBTQJ6UM33EUDHCQMVRD2ZGQA \
  | 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: f5033827d466f64a0ce2832b11eb26802048c5397d4a61757a7f2cd1ec11bd95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0d507e96304e3c064adcafc919f81bbb8c4c12eaf6e77779b78f666412a9726",
    "cross_cats_sorted": [
      "physics.ins-det",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2019-10-04T13:39:45Z",
    "title_canon_sha256": "d65ef3faa32ae739070caa64048af2f3aa22aaccd881e55f16074ec1db86d267"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.03031",
    "kind": "arxiv",
    "version": 3
  }
}