Pith Number

pith:OLYH65FF

pith:2014:OLYH65FFE7MJ4EWPTYM47YHKI7

not attested not anchored not stored refs pending

Fourier ptychographic reconstruction using Wirtinger flow optimization

Feng Chen, Guoan Zheng, Jinli Suo, KaiKai Guo, Liheng Bian, Qionghai Dai

arxiv:1411.6431 v1 · 2014-11-24 · 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{OLYH65FFE7MJ4EWPTYM47YHKI7}

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	2026-05-18T02:26:52.660806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72f07f74a527d89e12cf9e19cfe0ea47ea37107652208260b27384f734c86a63

Aliases

arxiv: 1411.6431 · arxiv_version: 1411.6431v1 · doi: 10.48550/arxiv.1411.6431 · pith_short_12: OLYH65FFE7MJ · pith_short_16: OLYH65FFE7MJ4EWP · pith_short_8: OLYH65FF

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/OLYH65FFE7MJ4EWPTYM47YHKI7 \
  | 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: 72f07f74a527d89e12cf9e19cfe0ea47ea37107652208260b27384f734c86a63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65e7afa19e1c675883981c1e897f3128a310655e082c509618cef4d6a22b80e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2014-11-24T12:43:45Z",
    "title_canon_sha256": "1a0b73ac93616dec463f4287c56e18f06a0328d09fcd59d0291d8cb865b349e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.6431",
    "kind": "arxiv",
    "version": 1
  }
}