Pith Number

pith:F5WX7L7Q

pith:1998:F5WX7L7QQEUGUD5H22KVPQUBA6

not attested not anchored not stored refs pending

Cosmological models with bulk viscosity in presence of adiabatic matter creation and with G, c and Lambda variables

J. A. Belinchon

arxiv:gr-qc/9812049 v2 · 1998-12-15 · gr-qc · physics.space-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{F5WX7L7QQEUGUD5H22KVPQUBA6}

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	2026-05-18T01:39:18.226728Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f6d7faff081286a0fa7d69557c281078eb3875715d80d5efe7c0a0f58c01db6

Aliases

arxiv: gr-qc/9812049 · arxiv_version: gr-qc/9812049v2 · doi: 10.48550/arxiv.gr-qc/9812049 · pith_short_12: F5WX7L7QQEUG · pith_short_16: F5WX7L7QQEUGUD5H · pith_short_8: F5WX7L7Q

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/F5WX7L7QQEUGUD5H22KVPQUBA6 \
  | 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: 2f6d7faff081286a0fa7d69557c281078eb3875715d80d5efe7c0a0f58c01db6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ea45bc4e6fda31f3c60ac063b748f9c6a65eec6b75902228ace5fe7fdd47b89",
    "cross_cats_sorted": [
      "physics.space-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1998-12-15T11:10:25Z",
    "title_canon_sha256": "6b76ef240c2e86c48c3a15f87087dee8c89d0585c73067656400e0ebb82b400c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9812049",
    "kind": "arxiv",
    "version": 2
  }
}