Pith Number

pith:Q3P4QBTU

pith:2019:Q3P4QBTU2ZHXBN363JXHSA3JRH

not attested not anchored not stored refs pending

Ultra-Stable Environment Control for the NEID Spectrometer: Design and Performance Demonstration

Adam Dykhouse, Amanda Cole, Andrew Monson, Arpita Roy, Basil Blank, Chad Bender, Christian Schwab, Chuck Henderson, Colin Nitroy, Cullen Blake, Dan Li, David Conran, Demetrius Tuggle, Emily Lubar, Eric Levi, Frederick R. Hearty, Gudmundur Stefansson, Jason T. Wright, Jayadev Rajagopal, Joe P. Ninan, Joseph Smolsky, Kyle F. Kaplan, Lawrence W. Ramsey, Matthew Nelson, Michael W. McElwain, Paul Robertson, Ryan Terrien, Samuel Halverson, Sarah E. Logsdon, Scott Blakeslee, Shubham Kanodia, Suvrath Mahadevan, Tyler Anderson

arxiv:1902.07729 v1 · 2019-02-20 · astro-ph.IM · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q3P4QBTU2ZHXBN363JXHSA3JRH}

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	2026-05-17T23:53:04.016090Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86dfc80674d64f70b77eda6e79036989d3eb212677fbbd989b52f6b24844d05a

Aliases

arxiv: 1902.07729 · arxiv_version: 1902.07729v1 · doi: 10.48550/arxiv.1902.07729 · pith_short_12: Q3P4QBTU2ZHX · pith_short_16: Q3P4QBTU2ZHXBN36 · pith_short_8: Q3P4QBTU

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/Q3P4QBTU2ZHXBN363JXHSA3JRH \
  | 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: 86dfc80674d64f70b77eda6e79036989d3eb212677fbbd989b52f6b24844d05a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79025f6c38d1df675178d43a215f8d84198b078e21db81ca6ef535d0bc53d41a",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-02-20T19:01:57Z",
    "title_canon_sha256": "eba88b6e407dcba1033d17c49a6655cfe098eb532e5e1c6defb7de5bcacdf70e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.07729",
    "kind": "arxiv",
    "version": 1
  }
}