Pith Number

pith:D3GWZIT5

pith:2018:D3GWZIT55WCLULPUY6DFGAWBIN

not attested not anchored not stored refs pending

Fully broadband vAPP coronagraphs enabling polarimetric high contrast imaging

Barnaby Norris, David S. Doelman, Emiel H. Por, Frans Snik, Jos De Boer, Michael J. Escuti, Steven P. Bos

arxiv:1811.09775 v1 · 2018-11-24 · 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{D3GWZIT55WCLULPUY6DFGAWBIN}

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	2026-05-18T00:00:01.287757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ecd6ca27ded84ba2df4c7865302c1434909ee85288a74190e601b438216e634

Aliases

arxiv: 1811.09775 · arxiv_version: 1811.09775v1 · doi: 10.48550/arxiv.1811.09775 · pith_short_12: D3GWZIT55WCL · pith_short_16: D3GWZIT55WCLULPU · pith_short_8: D3GWZIT5

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/D3GWZIT55WCLULPUY6DFGAWBIN \
  | 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: 1ecd6ca27ded84ba2df4c7865302c1434909ee85288a74190e601b438216e634

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c510c9726dc57ba39c326bc4119f7f41cd21d9e58f4bb2fc1ceeec8cb26b6b23",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-11-24T06:37:37Z",
    "title_canon_sha256": "ab15d8a263768e7c76e509b82047ca19ec3a43de0be689da5d145e5c8a7a16a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.09775",
    "kind": "arxiv",
    "version": 1
  }
}