Pith Number

pith:QYO4IYVZ

pith:2013:QYO4IYVZREOKAKHK24HCXRCJCK

not attested not anchored not stored refs pending

Optimal beam combiner design for nulling interferometers

2), (2) Subaru Telescope, (3) Jet Propulsion Laboratory), Bertrand Mennesson (3), Eugene Serabyn (3), Olivier Guyon (1, Stefan Martin (3) ((1) University of Arizona

arxiv:1306.0179 v1 · 2013-06-02 · 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{QYO4IYVZREOKAKHK24HCXRCJCK}

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	2026-05-18T01:49:38.827110Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

861dc462b9891ca028ead70e2bc44912ad16bbc2af00b0986cf1b2f3a544ca8d

Aliases

arxiv: 1306.0179 · arxiv_version: 1306.0179v1 · doi: 10.48550/arxiv.1306.0179 · pith_short_12: QYO4IYVZREOK · pith_short_16: QYO4IYVZREOKAKHK · pith_short_8: QYO4IYVZ

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/QYO4IYVZREOKAKHK24HCXRCJCK \
  | 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: 861dc462b9891ca028ead70e2bc44912ad16bbc2af00b0986cf1b2f3a544ca8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "774175718a933d4f435091adcabafc9cbf9fd057a7b59df2159477df0ca9621e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-06-02T07:11:57Z",
    "title_canon_sha256": "d7183db2d2f379f20b25c56872222938a2033c19e6910fadc66d4466b31d7ba6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.0179",
    "kind": "arxiv",
    "version": 1
  }
}