Pith Number

pith:HZ2QEX3B

pith:2003:HZ2QEX3BEMFCWAUFMO53RMXOJ3

not attested not anchored not stored refs pending

Construction of nonsingular cosmological solutions in string theories

Shinji Tsujikawa (Univ. of Tokyo)

arxiv:hep-th/0302181 v1 · 2003-02-24 · hep-th · astro-ph · gr-qc · hep-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{HZ2QEX3BEMFCWAUFMO53RMXOJ3}

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	2026-05-18T02:35:53.079839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e75025f61230a2b028563bbb8b2ee4ed55c377bf4e49f6c63896585fd7b2841

Aliases

arxiv: hep-th/0302181 · arxiv_version: hep-th/0302181v1 · doi: 10.48550/arxiv.hep-th/0302181 · pith_short_12: HZ2QEX3BEMFC · pith_short_16: HZ2QEX3BEMFCWAUF · pith_short_8: HZ2QEX3B

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/HZ2QEX3BEMFCWAUFMO53RMXOJ3 \
  | 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: 3e75025f61230a2b028563bbb8b2ee4ed55c377bf4e49f6c63896585fd7b2841

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54f6280a823691781b0dbc3d599b85f8894b6972253b560d435906ceb946803d",
    "cross_cats_sorted": [
      "astro-ph",
      "gr-qc",
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2003-02-24T02:28:54Z",
    "title_canon_sha256": "67e0966eb3b14fd5c25dc7f88733ab49946dd80ec681f3283026df3ea3c20e49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0302181",
    "kind": "arxiv",
    "version": 1
  }
}