Pith Number

pith:AWG7XASD

pith:2022:AWG7XASD5YVTNY5JLH4BN2JTF7

not attested not anchored not stored refs pending

In-situ wavelength calibration without a calibration target: use of Fraunhofer lines after landing on planetary surface

Conor Ryan, Emanuel Kopp, Enrico Dietz, Fernando Rull, Haruhisa Tabata, Heinz-Wilhelm H\"ubers, Koki Yumoto, Maximilian Buder, Olga Prieto-Ballesteros, Seiji Sugita, Shingo Kameda, Shoki Mori, Susanne Schroeder, Till Hagelschuer, Tomohiro Usui, Ute Boettger, Yuichiro Cho

arxiv:2205.10319 v1 · 2022-05-20 · astro-ph.EP · 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{AWG7XASD5YVTNY5JLH4BN2JTF7}

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	2026-07-05T04:25:06.203963Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

058dfb8243ee2b36e3a959f816e9332fc07c11ddcd23efb2ce01071f622a51fc

Aliases

arxiv: 2205.10319 · arxiv_version: 2205.10319v1 · doi: 10.48550/arxiv.2205.10319 · pith_short_12: AWG7XASD5YVT · pith_short_16: AWG7XASD5YVTNY5J · pith_short_8: AWG7XASD

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/AWG7XASD5YVTNY5JLH4BN2JTF7 \
  | 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: 058dfb8243ee2b36e3a959f816e9332fc07c11ddcd23efb2ce01071f622a51fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "145d8165f68d520bfe653aa5b697caaa08e91b86a9ec381b58c19a97520fe7cd",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2022-05-20T17:32:59Z",
    "title_canon_sha256": "393d96c5e22290be9e8fcd016fddbfcba0323d9df61f51b5d255fca0ed15d3af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.10319",
    "kind": "arxiv",
    "version": 1
  }
}