Pith Number

pith:R4IGTKXN

pith:2026:R4IGTKXNBLSYBYKODEW5ITHRED

not attested not anchored not stored refs pending

Early Telescope Throughput Results from the Collimated Beam Projector at the Vera C. Rubin Observatory

Christopher W. Stubbs, Elana Urbach, Eli Rykoff, Fritz Mueller, J\'er\'emy Neveu, Nathan Amouroux, Parker Fagrelius, Thibault Guillemin, Thierry Souverina

arxiv:2606.31822 v1 · 2026-06-30 · 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{R4IGTKXNBLSYBYKODEW5ITHRED}

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	2026-07-01T01:18:16.703066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f1069aaed0ae580e14e192dd44cf120daac3e671b429bd5ba9c426fe79f968e

Aliases

arxiv: 2606.31822 · arxiv_version: 2606.31822v1 · doi: 10.48550/arxiv.2606.31822 · pith_short_12: R4IGTKXNBLSY · pith_short_16: R4IGTKXNBLSYBYKO · pith_short_8: R4IGTKXN

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/R4IGTKXNBLSYBYKODEW5ITHRED \
  | 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: 8f1069aaed0ae580e14e192dd44cf120daac3e671b429bd5ba9c426fe79f968e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "725973c399918d14c53194c8c04a2c01f0a846a46997aaf29e6ebd910c6e1654",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2026-06-30T15:32:45Z",
    "title_canon_sha256": "0eff43fc4c58eda0f2ecd97bf566716485412c43ac5b7f793d4e5c72ced03fe6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.31822",
    "kind": "arxiv",
    "version": 1
  }
}