Pith Number

pith:HVCEK7PR

pith:2018:HVCEK7PRHCZHO7JVLKU475BEBR

not attested not anchored not stored refs pending

Semi-analytic modelling of the europium production by neutron star mergers in the halo of the Milky Way

Else Starkenburg, Gijs Nelemans, Onno Pols, Pim van Oirschot

arxiv:1812.03218 v1 · 2018-12-07 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HVCEK7PRHCZHO7JVLKU475BEBR}

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	2026-05-17T23:58:01.371205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d44457df138b2777d355aa9cff4240c65cf859e70d1c527d74eb728a863e813

Aliases

arxiv: 1812.03218 · arxiv_version: 1812.03218v1 · doi: 10.48550/arxiv.1812.03218 · pith_short_12: HVCEK7PRHCZH · pith_short_16: HVCEK7PRHCZHO7JV · pith_short_8: HVCEK7PR

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/HVCEK7PRHCZHO7JVLKU475BEBR \
  | 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: 3d44457df138b2777d355aa9cff4240c65cf859e70d1c527d74eb728a863e813

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fda6ac3ebcbcd1c122c2aec2a6bebff53d583475b58461b7635163953cca3ae1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-12-07T21:12:32Z",
    "title_canon_sha256": "f17dddf2d801c8d0be633bdad28a10ada6b63e407bb29254f6fa61449a2ee6f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.03218",
    "kind": "arxiv",
    "version": 1
  }
}