Pith Number

pith:4GHMQJMF

pith:2002:4GHMQJMFZ7UZRK67RTJFJN3AWJ

not attested not anchored not stored refs pending

Brane universes tested by supernovae

Marek Szydlowski, Mariusz P. Dabrowski, Wlodzimierz Godlowski

arxiv:astro-ph/0210156 v2 · 2002-10-07 · astro-ph · gr-qc · 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{4GHMQJMFZ7UZRK67RTJFJN3AWJ}

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	2026-05-18T01:40:42.096824Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e18ec82585cfe998abdf8cd254b760b27c5de615d8e6daa75a9d3ad1d799d4e2

Aliases

arxiv: astro-ph/0210156 · arxiv_version: astro-ph/0210156v2 · doi: 10.48550/arxiv.astro-ph/0210156 · pith_short_12: 4GHMQJMFZ7UZ · pith_short_16: 4GHMQJMFZ7UZRK67 · pith_short_8: 4GHMQJMF

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/4GHMQJMFZ7UZRK67RTJFJN3AWJ \
  | 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: e18ec82585cfe998abdf8cd254b760b27c5de615d8e6daa75a9d3ad1d799d4e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdef3542442c0262aac7c8aac6067df95f20d3a05a1d05868c1f11476cf39ffc",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-10-07T17:43:52Z",
    "title_canon_sha256": "d735f803abced80df09353af90f531f7a5fae56f2be0f175544776d9eaa3bdd5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0210156",
    "kind": "arxiv",
    "version": 2
  }
}