Pith Number

pith:D2IQ5IAP

pith:2015:D2IQ5IAPYSILO3D6RXRKLKRTIB

not attested not anchored not stored refs pending

Lyot-plane phase masks for improved high-contrast imaging with a vortex coronagraph

Brunella Carlomagno, Christian Delacroix, Dimitri Mawet, Elsa huby, Garreth J. Ruane, Grover A. Swartzlander, Olivier Absil

arxiv:1509.05750 v1 · 2015-09-18 · astro-ph.IM · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D2IQ5IAPYSILO3D6RXRKLKRTIB}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:27:57.281468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e910ea00fc490b76c7e8de2a5aa334067404ea5af070a7ff371bf16bd88eb25

Aliases

arxiv: 1509.05750 · arxiv_version: 1509.05750v1 · doi: 10.48550/arxiv.1509.05750 · pith_short_12: D2IQ5IAPYSIL · pith_short_16: D2IQ5IAPYSILO3D6 · pith_short_8: D2IQ5IAP

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/D2IQ5IAPYSILO3D6RXRKLKRTIB \
  | 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: 1e910ea00fc490b76c7e8de2a5aa334067404ea5af070a7ff371bf16bd88eb25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b878b8eff035afe66cca77116198711258f935419f0748b481cacf2c831d7c4a",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-09-18T19:03:59Z",
    "title_canon_sha256": "f507fddb37080d07947bc03a23f6c5349e2f450044a5788cfaf6bc7e54ca140a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05750",
    "kind": "arxiv",
    "version": 1
  }
}