Pith Number

pith:Z4HGARYR

pith:2018:Z4HGARYRJA2RKV4U4LNZP7WNG2

not attested not anchored not stored refs pending

Chemical modeling of internal photon-dominated regions surrounding deeply embedded HC/UCHII regions

\'Alvaro S\'anchez-Monge, Anika Schmiedeke, Benjamin Godard, Gwendoline St\'ephan, Jacques Le Bourlot, Peter Schilke, Rumpa Choudhury

arxiv:1803.08502 v1 · 2018-03-22 · astro-ph.GA · 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{Z4HGARYRJA2RKV4U4LNZP7WNG2}

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	2026-05-18T00:05:31.739128Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf0e6047114835155794e2db97fecd369fd9ea93b7d2265f50cac984e6362950

Aliases

arxiv: 1803.08502 · arxiv_version: 1803.08502v1 · doi: 10.48550/arxiv.1803.08502 · pith_short_12: Z4HGARYRJA2R · pith_short_16: Z4HGARYRJA2RKV4U · pith_short_8: Z4HGARYR

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/Z4HGARYRJA2RKV4U4LNZP7WNG2 \
  | 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: cf0e6047114835155794e2db97fecd369fd9ea93b7d2265f50cac984e6362950

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4da9f379120435ffc8b3d66c6b756e55376c7ba37fd4ba11412a07fe37a75cd2",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-03-22T15:35:08Z",
    "title_canon_sha256": "815ee442cc932bf20349de1b1ad10ed6f9424a1e4704e9deeb378a27a5a41003"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08502",
    "kind": "arxiv",
    "version": 1
  }
}