Pith Number

pith:NDW5HW6G

pith:2019:NDW5HW6GTYX7O7MYZP3WK3RO3M

not attested not anchored not stored refs pending

A new wavelength calibration for echelle spectrographs using Fabry-Perot etalons

A. Coffinet, B. Chazelas, C. Lovis, F. Cersullo, F. Pepe

arxiv:1903.01942 v1 · 2019-03-05 · 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{NDW5HW6GTYX7O7MYZP3WK3RO3M}

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	2026-05-17T23:47:57.868504Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68edd3dbc69e2ff77d98cbf7656e2edb0deeb8e72587a8aeafc87827e2289113

Aliases

arxiv: 1903.01942 · arxiv_version: 1903.01942v1 · doi: 10.48550/arxiv.1903.01942 · pith_short_12: NDW5HW6GTYX7 · pith_short_16: NDW5HW6GTYX7O7MY · pith_short_8: NDW5HW6G

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/NDW5HW6GTYX7O7MYZP3WK3RO3M \
  | 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: 68edd3dbc69e2ff77d98cbf7656e2edb0deeb8e72587a8aeafc87827e2289113

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7c09936003a332a928a5047a0fe527ad53e8e2e003efe87b20386720f176bb7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-03-05T17:28:06Z",
    "title_canon_sha256": "a1360ed741e4d2632587ff2046104d42e008eb5cde9731322a633deacb5115e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.01942",
    "kind": "arxiv",
    "version": 1
  }
}