Pith Number

pith:JNLUJ65F

pith:2020:JNLUJ65FQBCPCGZNFMZ2SUQCKO

not attested not anchored not stored refs pending

Interpretation of bulk viscosity as the generalized Chaplygin gas

Adam Krawiec, Marek Szydlowski

arxiv:2006.14900 v2 · 2020-06-26 · gr-qc · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JNLUJ65FQBCPCGZNFMZ2SUQCKO}

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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

1 paper in Pith

Perturbations with bulk viscosity in modified chaplygin gas cosmology

Receipt and verification

First computed	2026-07-05T01:24:38.289580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b5744fba58044f11b2d2b33a9520253aadd6dd4c38c274e650c512e98da150b

Aliases

arxiv: 2006.14900 · arxiv_version: 2006.14900v2 · doi: 10.48550/arxiv.2006.14900 · pith_short_12: JNLUJ65FQBCP · pith_short_16: JNLUJ65FQBCPCGZN · pith_short_8: JNLUJ65F

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/JNLUJ65FQBCPCGZNFMZ2SUQCKO \
  | 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: 4b5744fba58044f11b2d2b33a9520253aadd6dd4c38c274e650c512e98da150b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5843f68dbadfbfbb295bb66d0e1a5b926a084b74423fb99a2e3fbd2ab0f58d6e",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2020-06-26T10:37:07Z",
    "title_canon_sha256": "860b09ac8667a4b3a705ca78a4938e860a046efc09ddd50aceaece3f3f0dc2b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.14900",
    "kind": "arxiv",
    "version": 2
  }
}