Pith Number

pith:V6JVNNFD

pith:2018:V6JVNNFDN2DJ7V666LBHCL5Y3M

not attested not anchored not stored refs pending

Thermodynamics of the FRW universe at the event horizon in Palatini f(R) gravity

A. S. Sefiedgar, M. Mirzazadeh

arxiv:1811.01529 v1 · 2018-11-05 · 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{V6JVNNFDN2DJ7V666LBHCL5Y3M}

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	2026-05-18T00:01:34.071969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af9356b4a36e869fd7def2c2712fb8db0ce728dd5367ce42a007ab9a3bd920ca

Aliases

arxiv: 1811.01529 · arxiv_version: 1811.01529v1 · doi: 10.48550/arxiv.1811.01529 · pith_short_12: V6JVNNFDN2DJ · pith_short_16: V6JVNNFDN2DJ7V66 · pith_short_8: V6JVNNFD

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/V6JVNNFDN2DJ7V666LBHCL5Y3M \
  | 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: af9356b4a36e869fd7def2c2712fb8db0ce728dd5367ce42a007ab9a3bd920ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64b9c925b0f6b35e65d0fb907acbf6509f0cf620b1bf36281578f34aabd5fd4b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-11-05T06:32:01Z",
    "title_canon_sha256": "a090b331a62cafe34411166fbe6abe77088a8308f72ac7e81ce8cfbf15e190b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.01529",
    "kind": "arxiv",
    "version": 1
  }
}