Pith Number

pith:JH26WVHJ

pith:2019:JH26WVHJ253L74BB7UENL2TTIB

not attested not anchored not stored refs pending

Reference star differential imaging of close-in companions and circumstellar disks with the NIRC2 vortex coronagraph at W.M. Keck Observatory

Carlos Gomez Gonzalez, Dimitri Mawet, Elodie Choquet, Elsa huby, Eugene Serabyn, Garreth Ruane, Henry Ngo, Keith Matthews, Maddalena Reggiani, Nicole Wallack, Olivier Absil, Therese Cook, Tiffany Meshkat, W. Jerry Xuan

arxiv:1901.04090 v2 · 2019-01-13 · astro-ph.IM · astro-ph.EP · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JH26WVHJ253L74BB7UENL2TTIB}

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	2026-05-17T23:53:49.616703Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49f5eb54e9d776bff021fd08d5ea734052177e0a5b52af7e892bef17971bbff0

Aliases

arxiv: 1901.04090 · arxiv_version: 1901.04090v2 · doi: 10.48550/arxiv.1901.04090 · pith_short_12: JH26WVHJ253L · pith_short_16: JH26WVHJ253L74BB · pith_short_8: JH26WVHJ

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/JH26WVHJ253L74BB7UENL2TTIB \
  | 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: 49f5eb54e9d776bff021fd08d5ea734052177e0a5b52af7e892bef17971bbff0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64f40172e57be9806bc185ba71e3f24501e51751a27cfb2d9953c298495b086a",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-01-13T23:50:07Z",
    "title_canon_sha256": "fc452c9582c10cc6988cb64d305ba6cc998bd7a7ab42bb052376538629356635"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04090",
    "kind": "arxiv",
    "version": 2
  }
}