Pith Number

pith:RJYHMIVP

pith:2008:RJYHMIVPSZ4BGGUAH3GESHUYZJ

not attested not anchored not stored refs pending

Contrast Enhancement of Binary Star System Using an Optical Vortex Coronagraph

Daniel W. Wilson, David M. Palacios, Erin L. Ford, Grover A. Swartzlander, Jr., Laird M. Close, Mary Anne Peters, Rukiah S. Abdul-Malik

arxiv:0805.0837 v1 · 2008-05-07 · physics.optics · physics.ins-det · physics.space-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RJYHMIVPSZ4BGGUAH3GESHUYZJ}

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	2026-05-18T03:48:11.051002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a707622af9678131a803ecc491e98ca4984985d196a7c5d6abd0f413b5df80c

Aliases

arxiv: 0805.0837 · arxiv_version: 0805.0837v1 · doi: 10.48550/arxiv.0805.0837 · pith_short_12: RJYHMIVPSZ4B · pith_short_16: RJYHMIVPSZ4BGGUA · pith_short_8: RJYHMIVP

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/RJYHMIVPSZ4BGGUAH3GESHUYZJ \
  | 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: 8a707622af9678131a803ecc491e98ca4984985d196a7c5d6abd0f413b5df80c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c215cfb497b0674fb680fb224e59a09adfd4447e4225d6ced6cfa2669869ca10",
    "cross_cats_sorted": [
      "physics.ins-det",
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2008-05-07T04:32:41Z",
    "title_canon_sha256": "4ffd35f320d58010eab491c79bcc7f91fbde854524da01fafbe3523b285b6849"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.0837",
    "kind": "arxiv",
    "version": 1
  }
}