Pith Number

pith:EGRMUIEC

pith:2014:EGRMUIECFHMD4ZL2GIDJF3KYW7

not attested not anchored not stored refs pending

Apodized Pupil Lyot Coronagraphs for Arbitrary Apertures. IV. Reduced Inner Working Angle and Increased Robustness to Low-Order Aberrations

Laurent Pueyo, Mamadou N'Diaye, R\'emi Soummer

arxiv:1412.2751 v1 · 2014-12-08 · astro-ph.IM · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EGRMUIECFHMD4ZL2GIDJF3KYW7}

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	2026-05-18T01:41:20.738258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21a2ca208229d83e657a320692ed58b7eb44f300adfe6ab6dd5defe52010bf7f

Aliases

arxiv: 1412.2751 · arxiv_version: 1412.2751v1 · doi: 10.48550/arxiv.1412.2751 · pith_short_12: EGRMUIECFHMD · pith_short_16: EGRMUIECFHMD4ZL2 · pith_short_8: EGRMUIEC

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/EGRMUIECFHMD4ZL2GIDJF3KYW7 \
  | 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: 21a2ca208229d83e657a320692ed58b7eb44f300adfe6ab6dd5defe52010bf7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a9378d4fda98d13370cf24a413b87b973f62eb9de8ea9a911730d5ee4ebae59",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-12-08T21:00:02Z",
    "title_canon_sha256": "8f4c2fc58c9a4c2142bdf473c36fd2820bb62707be82041cdf78a6a40d727b84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.2751",
    "kind": "arxiv",
    "version": 1
  }
}