Pith Number

pith:7BFXI7SR

pith:2015:7BFXI7SRWI4BJ7BCWDM6VIAEHH

not attested not anchored not stored refs pending

Performance Analysis of Quantitative Phase Retrieval Method in Zernike Phase Contrast X-ray Microscopy

Dajiang Wang, Heng Chen, Kun Gao, Li Song, Zhili Wang

arxiv:1504.07691 v1 · 2015-04-29 · 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{7BFXI7SRWI4BJ7BCWDM6VIAEHH}

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	2026-05-18T01:25:30.620152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f84b747e51b23814fc22b0d9eaa00439e372def52de4896ebf20f24f5bc7980e

Aliases

arxiv: 1504.07691 · arxiv_version: 1504.07691v1 · doi: 10.48550/arxiv.1504.07691 · pith_short_12: 7BFXI7SRWI4B · pith_short_16: 7BFXI7SRWI4BJ7BC · pith_short_8: 7BFXI7SR

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/7BFXI7SRWI4BJ7BCWDM6VIAEHH \
  | 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: f84b747e51b23814fc22b0d9eaa00439e372def52de4896ebf20f24f5bc7980e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5f74d0a16ff2a218a80c1426e752c561cd5c83efea581d70c0fce9bb01a657f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-04-29T01:10:33Z",
    "title_canon_sha256": "6efbfe9e51c30f8189ab9c2e4abaf5356d9e9207defe3d64b96db89b08f71e9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.07691",
    "kind": "arxiv",
    "version": 1
  }
}