Pith Number

pith:QS2UNP7N

pith:2022:QS2UNP7NTSGFKQZN2STGSWFCGQ

not attested not anchored not stored refs pending

AIROPA IV: Validating Point Spread Function Reconstruction on Various Science Cases

Abhimat Gautam, Andrea Ghez, Anna Ciurlo, Gunther Witzel, Jessica R. Lu, Matthew Hosek Jr., Michael P. Fitzgerald, Paolo Turri, Sean K. Terry, Tuan Do

arxiv:2209.05489 v1 · 2022-09-12 · astro-ph.IM · astro-ph.EP · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QS2UNP7NTSGFKQZN2STGSWFCGQ}

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	2026-07-05T04:56:46.748908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84b546bfed9c8c55432dd4a66958a23430eec6458be221acd8b145e539531d07

Aliases

arxiv: 2209.05489 · arxiv_version: 2209.05489v1 · doi: 10.48550/arxiv.2209.05489 · pith_short_12: QS2UNP7NTSGF · pith_short_16: QS2UNP7NTSGFKQZN · pith_short_8: QS2UNP7N

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/QS2UNP7NTSGFKQZN2STGSWFCGQ \
  | 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: 84b546bfed9c8c55432dd4a66958a23430eec6458be221acd8b145e539531d07

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e8612957135434ac0e9c248f81dfbbb3437823b40735a7a6605b664877c1715",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2022-09-12T18:00:00Z",
    "title_canon_sha256": "0eacd02066cbc35a06b8c76820c1ae3d428f73cbb339c42795b08d60c4d6b789"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.05489",
    "kind": "arxiv",
    "version": 1
  }
}