Pith Number

pith:HG3NDTKE

pith:2013:HG3NDTKENGADFELKMLMEKP3RQU

not attested not anchored not stored refs pending

Earthshine observations at high spectral resolution: Exploring and detecting metal lines in the Earth's upper atmosphere

B. Gonz\'alez-Merino, E. Pall\'e, F. Motalebi, M. Kissler-Patig, P. Monta\~n\'es-Rodr\'iguez

arxiv:1309.0354 v1 · 2013-09-02 · physics.space-ph · 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{HG3NDTKENGADFELKMLMEKP3RQU}

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	2026-05-18T03:14:27.489222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39b6d1cd44698032916a62d8453f71850cb0f2f9a4fa0f7f331ee8442e0120fa

Aliases

arxiv: 1309.0354 · arxiv_version: 1309.0354v1 · doi: 10.48550/arxiv.1309.0354 · pith_short_12: HG3NDTKENGAD · pith_short_16: HG3NDTKENGADFELK · pith_short_8: HG3NDTKE

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/HG3NDTKENGADFELKMLMEKP3RQU \
  | 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: 39b6d1cd44698032916a62d8453f71850cb0f2f9a4fa0f7f331ee8442e0120fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e4fcf7fa16dfdfb67a675218915a7e09a411c11d49952a673d54fd732573142",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.space-ph",
    "submitted_at": "2013-09-02T10:23:40Z",
    "title_canon_sha256": "f4e55c86887653daa57a20a7b66c835098b5fc89043faa850e9d0a9e7b506c63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.0354",
    "kind": "arxiv",
    "version": 1
  }
}