Pith Number

pith:2GA4QFGO

pith:2020:2GA4QFGO6NWN327DXXJ72LHBW3

not attested not anchored not stored refs pending

Performance Verification of the EXtreme PREcision Spectrograph

Allen B. Davis, Andrew E. Szymkowiak, Bijan Nemati, Christopher Leet, Colby A. Jurgenson, David Sawyer, Debra A. Fischer, Giorgio Pariani, J. M. Joel Ong, Joe Llama, John M. Brewer, Lars A. Buchhave, Lily L. Zhao, Marco Riva, Matteo Genoni, Michael Shao, Paul Fournier, Rafael A. Probst, Rafal Pawluczyk, Ren\'e Tronsgaard, Ronald Holzwarth, Russell Trahan, Ryan R. Petersburg, Ryan T. Blackman, Samuel H. C. Cabot, Tilo Steinmetz, Travis Sawyer, Tyler M. McCracken

arxiv:2003.08852 v1 · 2020-03-19 · astro-ph.IM · astro-ph.EP · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2GA4QFGO6NWN327DXXJ72LHBW3}

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	2026-07-05T01:00:41.703282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d181c814cef36cddebe3bdd3fd2ce1b6fe27097ff47cc99f1cfeb0083a46c2b8

Aliases

arxiv: 2003.08852 · arxiv_version: 2003.08852v1 · doi: 10.48550/arxiv.2003.08852 · pith_short_12: 2GA4QFGO6NWN · pith_short_16: 2GA4QFGO6NWN327D · pith_short_8: 2GA4QFGO

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/2GA4QFGO6NWN327DXXJ72LHBW3 \
  | 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: d181c814cef36cddebe3bdd3fd2ce1b6fe27097ff47cc99f1cfeb0083a46c2b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "062e214432e27f809faafc42201612ee3f99a21785683fc36996e2033033368e",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-03-19T15:04:18Z",
    "title_canon_sha256": "eaa6758b4433061a55d229376c66d4215796fd2eb6999a980a9c05cd730912c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.08852",
    "kind": "arxiv",
    "version": 1
  }
}