Pith Number

pith:7PK3CXEY

pith:2014:7PK3CXEYY3MDBYBOGDRHVGDFFR

not attested not anchored not stored refs pending

A high-contrast coronagraph for earth-like exoplanet direct imaging: design and test

C. C. Liu, D. Q. Ren, G. Zhao, J. P. Dou, R. Chen, X. Zhang, Y. T. Zhu, Zh. Wu

arxiv:1406.2364 v2 · 2014-06-09 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7PK3CXEYY3MDBYBOGDRHVGDFFR}

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	2026-05-18T02:49:55.390140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbd5b15c98c6d830e02e30e27a98652c564bdde249de47b9c8c467bd288f8712

Aliases

arxiv: 1406.2364 · arxiv_version: 1406.2364v2 · doi: 10.48550/arxiv.1406.2364 · pith_short_12: 7PK3CXEYY3MD · pith_short_16: 7PK3CXEYY3MDBYBO · pith_short_8: 7PK3CXEY

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/7PK3CXEYY3MDBYBOGDRHVGDFFR \
  | 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: fbd5b15c98c6d830e02e30e27a98652c564bdde249de47b9c8c467bd288f8712

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b051b2756ff1dee8611a685915dcf21cd3582f8497130314baf687dd4288cf07",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-06-09T21:23:52Z",
    "title_canon_sha256": "9742f896f1a2f54da446d7039f5dda46b50ec7c9a10009d9cd75f315234b0806"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.2364",
    "kind": "arxiv",
    "version": 2
  }
}