pith. sign in
Pith Number

pith:5FTAKM7C

pith:2017:5FTAKM7CD5IRBXOAH2QCGD2NHI
not attested not anchored not stored refs pending

Vignetting effect in Fourier ptychographic microscopy

An Pan, Baoli Yao, Chao Zuo, Ming Lei, Yan Zhang, Yuege Xie

arxiv:1710.06717 v2 · 2017-10-18 · physics.optics

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{5FTAKM7CD5IRBXOAH2QCGD2NHI}

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 2026-05-17T23:52:18.827622Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

e9660533e21f5110ddc03ea0230f4d3a05886cbd63230401853af5386d0175a2

Aliases

arxiv: 1710.06717 · arxiv_version: 1710.06717v2 · doi: 10.48550/arxiv.1710.06717 · pith_short_12: 5FTAKM7CD5IR · pith_short_16: 5FTAKM7CD5IRBXOA · pith_short_8: 5FTAKM7C
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/5FTAKM7CD5IRBXOAH2QCGD2NHI \
  | 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: e9660533e21f5110ddc03ea0230f4d3a05886cbd63230401853af5386d0175a2
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "e4c1a816202e41b284454dc0992993b43fd273afbbb9d1ec20265f35007162f5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2017-10-18T13:15:35Z",
    "title_canon_sha256": "eb9be641acbf63f93bcd59017928ba0cab41891ba2d6cc276d6300bf60a23112"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.06717",
    "kind": "arxiv",
    "version": 2
  }
}