Pith Number

pith:EEK7HTSE

pith:2014:EEK7HTSEE2PXQKQXOHX7GZFKUO

not attested not anchored not stored refs pending

Stabilizing a Fabry-Perot etalon to 3 cm/s for spectrograph calibration

Andreas Quirrenbach, Christian Schwab, Julian Stuermer, Steve K. Lamoreaux, Thomas Walther, Thorsten Fuehrer, Yulia V. Gurevich

arxiv:1404.0004 v1 · 2014-03-31 · 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{EEK7HTSEE2PXQKQXOHX7GZFKUO}

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	2026-05-18T01:30:25.922497Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2115f3ce44269f782a1771eff364aaa3bab8e0bb7c894bd0df84c7beb4810456

Aliases

arxiv: 1404.0004 · arxiv_version: 1404.0004v1 · doi: 10.48550/arxiv.1404.0004 · pith_short_12: EEK7HTSEE2PX · pith_short_16: EEK7HTSEE2PXQKQX · pith_short_8: EEK7HTSE

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/EEK7HTSEE2PXQKQXOHX7GZFKUO \
  | 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: 2115f3ce44269f782a1771eff364aaa3bab8e0bb7c894bd0df84c7beb4810456

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7481517e50af26adc1619298c044dc0076ea0e89a1ab48fee7e3befb623b52e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-03-31T20:00:00Z",
    "title_canon_sha256": "1382b337ef31e5fc568bc3c3c1a1398fa00f03f41e9e77895269fa944e0fa2c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.0004",
    "kind": "arxiv",
    "version": 1
  }
}