Pith Number

pith:SVMXU4AF

pith:2007:SVMXU4AF63PBRDQZNTBQS2QYRT

not attested not anchored not stored refs pending

Supernovae Constraints on Cosmological Density Parameter and Cosmic Topology

M.J. Reboucas

arxiv:astro-ph/0702642 v1 · 2007-02-23 · 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{SVMXU4AF63PBRDQZNTBQS2QYRT}

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	2026-05-18T00:59:12.607461Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95597a7005f6de188e196cc3096a188cd5bd80bdcd5d6d61748f1fae78942f46

Aliases

arxiv: astro-ph/0702642 · arxiv_version: astro-ph/0702642v1 · doi: 10.48550/arxiv.astro-ph/0702642 · pith_short_12: SVMXU4AF63PB · pith_short_16: SVMXU4AF63PBRDQZ · pith_short_8: SVMXU4AF

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/SVMXU4AF63PBRDQZNTBQS2QYRT \
  | 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: 95597a7005f6de188e196cc3096a188cd5bd80bdcd5d6d61748f1fae78942f46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84e0055860b3f3d1361d4f1a2059c1bcb078b893eb676f051f963b918bceb0ac",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-02-23T22:16:41Z",
    "title_canon_sha256": "b014b3574effe3f7c910d29037d15c09d34ae1f2b1405a98f1fee2e4c980f458"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0702642",
    "kind": "arxiv",
    "version": 1
  }
}