Pith Number

pith:4IVGXGQS

pith:2000:4IVGXGQSSU2XH6JHBK2CGD6FJP

not attested not anchored not stored refs pending

Bulk viscosity in superfluid neutron star cores. I. Direct Urca processes in npe\mu matter

D.G. Yakovlev (2) ((1) N. Copernicus Astronomical Center, K.P. Levenfish (2), P. Haensel (1), Poland (2) Ioffe Physical Technical Institute, Russia), St. Petersburg, Warsaw

arxiv:astro-ph/0004183 v1 · 2000-04-13 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4IVGXGQSSU2XH6JHBK2CGD6FJP}

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.

Cited by

4 papers in Pith

On the effect of higher order symmetry energy corrections in Skyrme models for neutron star matter

Bulk viscosity from neutron decays to dark baryons in neutron star matter

Evolution of Crab Pulsar: Magnetic Inclination Angle and Spin

Gradient-Produced Neutrinos

Receipt and verification

First computed	2026-07-04T15:42:25.670824Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e22a6b9a12953573f9270ab4230fc54bc74717953a4fb6d1ffb7bc37ccf33821

Aliases

arxiv: astro-ph/0004183 · arxiv_version: astro-ph/0004183v1 · doi: 10.48550/arxiv.astro-ph/0004183 · pith_short_12: 4IVGXGQSSU2X · pith_short_16: 4IVGXGQSSU2XH6JH · pith_short_8: 4IVGXGQS

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/4IVGXGQSSU2XH6JHBK2CGD6FJP \
  | 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: e22a6b9a12953573f9270ab4230fc54bc74717953a4fb6d1ffb7bc37ccf33821

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d72244dd4d6d0b781f5fe2177421e601c1bec8445e3b159bbb8a6b5d962bfe5b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-04-13T10:55:19Z",
    "title_canon_sha256": "ea17fb86f09dab95caa848c726c01fb2174832688817b317127393aeb0c89325"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0004183",
    "kind": "arxiv",
    "version": 1
  }
}