Pith Number

pith:MOIXOHBY

pith:2026:MOIXOHBYKUDIQ2QLYX53BEVFZH

not attested not anchored not stored refs pending

In Situ Measurements of the Reflectances of the LSSTCam Optics and Assessing the Impact of Optical Ghosts

Aashay Pai, Alex Drlica-Wagner, Elana K. Urbach, Fritz Mueller, Joshua E. Meyers, Lee S. Kelvin, Robert H. Lupton

arxiv:2606.31826 v1 · 2026-06-30 · astro-ph.IM · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MOIXOHBYKUDIQ2QLYX53BEVFZH}

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	2026-07-01T01:18:16.828091Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6391771c385506886a0bc5fbb092a5c9fd4594e1bcae206acd2ad466d8b5a5a5

Aliases

arxiv: 2606.31826 · arxiv_version: 2606.31826v1 · doi: 10.48550/arxiv.2606.31826 · pith_short_12: MOIXOHBYKUDI · pith_short_16: MOIXOHBYKUDIQ2QL · pith_short_8: MOIXOHBY

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/MOIXOHBYKUDIQ2QLYX53BEVFZH \
  | 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: 6391771c385506886a0bc5fbb092a5c9fd4594e1bcae206acd2ad466d8b5a5a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66a86765cb98fc5b8988d8afd3668bdb11d9e42b5cd37a2ef2bc4f5bb89ebacf",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2026-06-30T15:35:44Z",
    "title_canon_sha256": "f80e2227e1662c9a9df6712ac0e97bf850ca6503979ce9116278a8743289a121"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.31826",
    "kind": "arxiv",
    "version": 1
  }
}