Pith Number

pith:VTNIPNA4

pith:2021:VTNIPNA4FOANNLAZVAW66AJGHM

not attested not anchored not stored refs pending

Implementation of a broadband focal plane estimator for high-contrast dark zones

Iva Laginja, James Noss, Laurent Pueyo, Leonid Pogorelyuk, Marshall D. Perrin, N. Jeremy Kasdin, Remi Soummer, Scott D. Will, Susan F. Redmond

arxiv:2108.08200 v1 · 2021-08-18 · astro-ph.IM · physics.ins-det · 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{VTNIPNA4FOANNLAZVAW66AJGHM}

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	2026-07-05T03:07:00.446875Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

acda87b41c2b80d6ac19a82def01263b1adb94ab24f76c5ba05c8e026c86ef45

Aliases

arxiv: 2108.08200 · arxiv_version: 2108.08200v1 · doi: 10.48550/arxiv.2108.08200 · pith_short_12: VTNIPNA4FOAN · pith_short_16: VTNIPNA4FOANNLAZ · pith_short_8: VTNIPNA4

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/VTNIPNA4FOANNLAZVAW66AJGHM \
  | 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: acda87b41c2b80d6ac19a82def01263b1adb94ab24f76c5ba05c8e026c86ef45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d33abd7206fc4ba5300bff8303dac5317ac9da1f695223ca5faf9b056cb350b",
    "cross_cats_sorted": [
      "physics.ins-det",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-08-18T15:31:07Z",
    "title_canon_sha256": "2cedfe0830334368c5f8cfcd0b37b83cc476d259b504176340ca7326a9a20242"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.08200",
    "kind": "arxiv",
    "version": 1
  }
}