Pith Number

pith:4CPOMK3S

pith:2018:4CPOMK3SL5HP46JGNFYOFUD25D

not attested not anchored not stored refs pending

Polytropic Inspired Inflation on the Brane

Arvin Ravanpak, Hossein Farajollahi, Mohammad Reza Setare

arxiv:1804.03818 v1 · 2018-04-11 · 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{4CPOMK3SL5HP46JGNFYOFUD25D}

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	2026-05-18T00:18:25.007857Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e09ee62b725f4efe79266970e2d07ae8d8cd79903fe0c4e8a6897258255fecca

Aliases

arxiv: 1804.03818 · arxiv_version: 1804.03818v1 · doi: 10.48550/arxiv.1804.03818 · pith_short_12: 4CPOMK3SL5HP · pith_short_16: 4CPOMK3SL5HP46JG · pith_short_8: 4CPOMK3S

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/4CPOMK3SL5HP46JGNFYOFUD25D \
  | 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: e09ee62b725f4efe79266970e2d07ae8d8cd79903fe0c4e8a6897258255fecca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da89617ddb5baf2fd84edbfa8bfd542341e40c4e4fea6effcc8d4200a4b0d7a6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-04-11T05:27:34Z",
    "title_canon_sha256": "2c37e7f3cefe5a9bc7d2b6ccc528464a8360bc51a4eac5696c06120d905b85e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.03818",
    "kind": "arxiv",
    "version": 1
  }
}