Pith Number

pith:XRR6OW5L

pith:2018:XRR6OW5LPJXFHJEX7EJHUGH4AK

not attested not anchored not stored refs pending

Hot bubbles of planetary nebulae with hydrogen-deficient winds - II. Analytical approximations with application to BD+30$^\circ$3639

2), (2) Max-Planck-Institut f\"u Sonnensystemforschung, Detlef Sch\"onberner (1), Germany, Germany), G\"ottingen, Matthias Steffen (1) ((1) Leibniz-Institut f\"ur Astrophysik Potsdam, Ralf Jacob (1), Ren\'e Heller (1

arxiv:1809.08305 v2 · 2018-09-21 · 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{XRR6OW5LPJXFHJEX7EJHUGH4AK}

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	2026-05-17T23:59:05.021252Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc63e75bab7a6e53a497f9127a18fc028e9807af9d40c8fb8622e4fa8a471dff

Aliases

arxiv: 1809.08305 · arxiv_version: 1809.08305v2 · doi: 10.48550/arxiv.1809.08305 · pith_short_12: XRR6OW5LPJXF · pith_short_16: XRR6OW5LPJXFHJEX · pith_short_8: XRR6OW5L

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/XRR6OW5LPJXFHJEX7EJHUGH4AK \
  | 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: bc63e75bab7a6e53a497f9127a18fc028e9807af9d40c8fb8622e4fa8a471dff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d0034143e22af91588b55e5438bdbf0b77b00ff28e6bbd1682e8ee276bc9994",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-09-21T20:42:03Z",
    "title_canon_sha256": "0b9481fd03daec584fbe163996deb48dd601f6260c05f9f966f1956ced93a67f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.08305",
    "kind": "arxiv",
    "version": 2
  }
}