Pith Number

pith:PSKCZEBD

pith:2009:PSKCZEBDYKTAHC3N6T4UEKJWMC

not attested not anchored not stored refs pending

Band-Limited Coronagraphs using a Halftone-dot process: design guidelines, manufacturing, and laboratory results

C. Dorrer, M. Kasper, P. Martinez

arxiv:0910.1183 v1 · 2009-10-07 · 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{PSKCZEBDYKTAHC3N6T4UEKJWMC}

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	2026-05-18T02:34:19.851575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c942c9023c2a6038b6df4f942293660ab22bca3ae4becf6ddf8b2d6d4c12f20

Aliases

arxiv: 0910.1183 · arxiv_version: 0910.1183v1 · doi: 10.48550/arxiv.0910.1183 · pith_short_12: PSKCZEBDYKTA · pith_short_16: PSKCZEBDYKTAHC3N · pith_short_8: PSKCZEBD

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/PSKCZEBDYKTAHC3N6T4UEKJWMC \
  | 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: 7c942c9023c2a6038b6df4f942293660ab22bca3ae4becf6ddf8b2d6d4c12f20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8ca6b3efc8a29caca8f86ae6aa82e86afce1b86303eb99581be4f8af039f3ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-10-07T08:27:56Z",
    "title_canon_sha256": "7a267dc9798489c6c1cbfcd977a02c7493a49fe5382ac85361373dce39757ea4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.1183",
    "kind": "arxiv",
    "version": 1
  }
}