Pith Number

pith:EZXNOUN2

pith:2018:EZXNOUN25QRHLEGBLYCMY6WXMD

not attested not anchored not stored refs pending

The hunt for Sirius Ab: Comparison of algorithmic sky and PSF estimation performance in deep coronagraphic thermal-IR high contrast imaging

Alycia Weinberger, Frans Snik, Gilles P. P. L. Otten, Jared R. Males, John Monnier, Joseph D. Long, Katie M. Morzinski, Laird M. Close, Matthew A. Kenworthy, Volker Tolls

arxiv:1807.04361 v1 · 2018-07-11 · 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{EZXNOUN25QRHLEGBLYCMY6WXMD}

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	2026-05-18T00:10:53.769973Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

266ed751baec227590c15e04cc7ad760e8a0b0b57b0cc9b769b444b898128f5a

Aliases

arxiv: 1807.04361 · arxiv_version: 1807.04361v1 · doi: 10.48550/arxiv.1807.04361 · pith_short_12: EZXNOUN25QRH · pith_short_16: EZXNOUN25QRHLEGB · pith_short_8: EZXNOUN2

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/EZXNOUN25QRHLEGBLYCMY6WXMD \
  | 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: 266ed751baec227590c15e04cc7ad760e8a0b0b57b0cc9b769b444b898128f5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7d9d536a750663fd63990dc623d1d35275257d9e157b9e5ccdb92b2f8789343",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-07-11T21:54:36Z",
    "title_canon_sha256": "afdba69f32af2d1b46394f378f82f3e75c185f5cc40a5269ec5bb0770d86474d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04361",
    "kind": "arxiv",
    "version": 1
  }
}