Pith Number

pith:DQKE7JWP

pith:2015:DQKE7JWPN3OAQ6XMGPSLFNIVFH

not attested not anchored not stored refs pending

Bubble Universes With Different Gravitational Constants

Kei-ichi Maeda, Yu-ichi Takamizu

arxiv:1504.05788 v1 · 2015-04-21 · gr-qc · astro-ph.CO · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DQKE7JWPN3OAQ6XMGPSLFNIVFH}

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	2026-05-18T01:36:33.497917Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c144fa6cf6edc087aec33e4b2b51529f74e26f189f80ef53df358edb23b3c7f

Aliases

arxiv: 1504.05788 · arxiv_version: 1504.05788v1 · doi: 10.48550/arxiv.1504.05788 · pith_short_12: DQKE7JWPN3OA · pith_short_16: DQKE7JWPN3OAQ6XM · pith_short_8: DQKE7JWP

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/DQKE7JWPN3OAQ6XMGPSLFNIVFH \
  | 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: 1c144fa6cf6edc087aec33e4b2b51529f74e26f189f80ef53df358edb23b3c7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e608936219d1509399a86036197927bae519875c21d46ea0a27fad6289183467",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-04-21T09:13:46Z",
    "title_canon_sha256": "2da5e659673b2ee0294c13d69f0427020d08780fa2c7d7dedc65fd2bbacfce45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05788",
    "kind": "arxiv",
    "version": 1
  }
}