Pith Number

pith:SPOPBH5L

pith:2012:SPOPBH5L6SNPHVF3LZZJQRUCYI

not attested not anchored not stored refs pending

Multiple Inflationary Stages with Varying Equation of State

Hassan Firouzjahi, Misao Sasaki, Mohammad Hossein Namjoo

arxiv:1207.3638 v2 · 2012-07-16 · hep-th · 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{SPOPBH5L6SNPHVF3LZZJQRUCYI}

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	2026-05-18T01:56:18.146421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93dcf09fabf49af3d4bb5e72984682c2284cf9b284bd9e9c06c37ca305add77a

Aliases

arxiv: 1207.3638 · arxiv_version: 1207.3638v2 · doi: 10.48550/arxiv.1207.3638 · pith_short_12: SPOPBH5L6SNP · pith_short_16: SPOPBH5L6SNPHVF3 · pith_short_8: SPOPBH5L

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/SPOPBH5L6SNPHVF3LZZJQRUCYI \
  | 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: 93dcf09fabf49af3d4bb5e72984682c2284cf9b284bd9e9c06c37ca305add77a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5b9f990c98069c31e29ab9d583f80e500c63355f65f6d03bbff737536b2027c",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2012-07-16T11:58:56Z",
    "title_canon_sha256": "bd034a350847c1998e2d051ecdf1a8eec6db4ad992bd4070d0c5c57f2119612d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.3638",
    "kind": "arxiv",
    "version": 2
  }
}