Pith Number

pith:BFPMKSVQ

pith:2002:BFPMKSVQJFR4TPLPQW7HHX2RKN

not attested not anchored not stored refs pending

Uniqueness of Self-Similar Asymptotically Friedmann-Robertson-Walker Spacetime in Brans-Dicke theory

Hideki Maeda, Jun-ichirou Koga, Kei-ichi Maeda

arxiv:gr-qc/0205109 v2 · 2002-05-25 · 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{BFPMKSVQJFR4TPLPQW7HHX2RKN}

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	2026-05-18T04:35:34.963079Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

095ec54ab04963c9bd6f85be73df51534bf1623dc09360675c89b0f3fdcfb163

Aliases

arxiv: gr-qc/0205109 · arxiv_version: gr-qc/0205109v2 · doi: 10.48550/arxiv.gr-qc/0205109 · pith_short_12: BFPMKSVQJFR4 · pith_short_16: BFPMKSVQJFR4TPLP · pith_short_8: BFPMKSVQ

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/BFPMKSVQJFR4TPLPQW7HHX2RKN \
  | 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: 095ec54ab04963c9bd6f85be73df51534bf1623dc09360675c89b0f3fdcfb163

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db69b243de081dfac0ea64b90cfd7a6f7f1e6fe290e2b2ab33a92dfc5f90134d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2002-05-25T21:21:33Z",
    "title_canon_sha256": "b59603687362fd959a0847954a6107c5f7712cf571bb538634a4cab77bc83fde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0205109",
    "kind": "arxiv",
    "version": 2
  }
}