Pith Number

pith:5WCHO6CL

pith:2026:5WCHO6CLGN53G7NC7755IFAWBO

not attested not anchored not stored refs pending

CATKit2-HCI: a collaborative framework for advancing high-contrast coronagraph testbeds

Alexis Lau, Axel Potier, Bryony Nickson, Clarissa Do \'O, Dimitri P. Mawet, Emiel H. Por, Iva Laginja, Johan Mazoyer, Jules Fowler, Lane Meier, Laurent A. Pueyo, Michael W. McElwain, Neil T. Zimmerman, Pierre Baudoz, Rapha\"el Galicher, Rapha\"el Pourcelot, Rebecca Jensen-Clem, R\'emi Soummer, Sarah Steiger, Scott D. Will, Susan F. Redmond, Tyler D. Groff

arxiv:2607.19921 v1 · 2026-07-22 · 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{5WCHO6CLGN53G7NC7755IFAWBO}

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	2026-07-23T01:24:37.432982Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed8477784b337bb37da2fffbd414160bb795183c1660fda5faaf6d44cedd7f05

Aliases

arxiv: 2607.19921 · arxiv_version: 2607.19921v1 · doi: 10.48550/arxiv.2607.19921 · pith_short_12: 5WCHO6CLGN53 · pith_short_16: 5WCHO6CLGN53G7NC · pith_short_8: 5WCHO6CL

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/5WCHO6CLGN53G7NC7755IFAWBO \
  | 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: ed8477784b337bb37da2fffbd414160bb795183c1660fda5faaf6d44cedd7f05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c607b21a91046e0f73be642de63da78dd87ab03d63af110540166e31cc392c9b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2026-07-22T08:51:56Z",
    "title_canon_sha256": "8d7b92dc3d2fe4537ecc2a9b04b61f7752034e5031035c0fb05f9c26f2f72652"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.19921",
    "kind": "arxiv",
    "version": 1
  }
}