Pith Number

pith:P7GMUFFK

pith:2013:P7GMUFFKWKAG7MBXVISLJ5ZRRR

not attested not anchored not stored refs pending

Exact Evolution of Discrete Relativistic Cosmological Models

Daniele Gregoris, Kjell Rosquist, Reza Tavakol, Timothy Clifton

arxiv:1309.2876 v2 · 2013-09-11 · gr-qc · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P7GMUFFKWKAG7MBXVISLJ5ZRRR}

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	2026-05-18T01:47:43.164591Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7fccca14aab2806fb037aa24b4f7318c6f2e0c02f79ea1e36517d7e01b62cdf4

Aliases

arxiv: 1309.2876 · arxiv_version: 1309.2876v2 · doi: 10.48550/arxiv.1309.2876 · pith_short_12: P7GMUFFKWKAG · pith_short_16: P7GMUFFKWKAG7MBX · pith_short_8: P7GMUFFK

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/P7GMUFFKWKAG7MBXVISLJ5ZRRR \
  | 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: 7fccca14aab2806fb037aa24b4f7318c6f2e0c02f79ea1e36517d7e01b62cdf4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c111b6ef3f16029cc2093d0021e6d4c8f83323a4b2ece241aa1f3d16e04a807e",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-09-11T16:13:06Z",
    "title_canon_sha256": "ba333ab39494e6e9be8b9666c23dc241d3ab68ff3d47208264b9c035d74b2397"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.2876",
    "kind": "arxiv",
    "version": 2
  }
}