Pith Number

pith:77D7VXKG

pith:2014:77D7VXKG6A5OYYK2PUDBXDVLGJ

not attested not anchored not stored refs pending

Exactly solvable wormhole and cosmological models with a barotropic equation of state

Peter K.F. Kuhfittig

arxiv:1408.4686 v3 · 2014-08-20 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{77D7VXKG6A5OYYK2PUDBXDVLGJ}

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	2026-05-18T01:11:51.876096Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ffc7fadd46f03aec615a7d061b8eab32748cdca0e376a82fb6f8664330ee6aff

Aliases

arxiv: 1408.4686 · arxiv_version: 1408.4686v3 · doi: 10.48550/arxiv.1408.4686 · pith_short_12: 77D7VXKG6A5O · pith_short_16: 77D7VXKG6A5OYYK2 · pith_short_8: 77D7VXKG

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/77D7VXKG6A5OYYK2PUDBXDVLGJ \
  | 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: ffc7fadd46f03aec615a7d061b8eab32748cdca0e376a82fb6f8664330ee6aff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "411a80cb8ea0910e518df866984c136a59aaf58cd20bdc2917c1e7ddffe423cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-08-20T15:00:47Z",
    "title_canon_sha256": "fe8c09e8586fed09439d486ee15913cb85b6354ba14f79923c92a7637dc6fd3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.4686",
    "kind": "arxiv",
    "version": 3
  }
}