Pith Number

pith:Q7DWBTTS

pith:2012:Q7DWBTTSR3SF2P5OXLA3DOP7YA

not attested not anchored not stored refs pending

Cosmological constraints for a two brane-world system with single equation of state

Juan L. Perez, L. Arturo Urena-Lopez, Ruben Cordero

arxiv:1208.4385 v1 · 2012-08-21 · gr-qc · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q7DWBTTSR3SF2P5OXLA3DOP7YA}

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	2026-05-18T03:48:14.354874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87c760ce728ee45d3faebac1b1b9ffc0321052ffff1dac0fb1116777818c90f4

Aliases

arxiv: 1208.4385 · arxiv_version: 1208.4385v1 · doi: 10.48550/arxiv.1208.4385 · pith_short_12: Q7DWBTTSR3SF · pith_short_16: Q7DWBTTSR3SF2P5O · pith_short_8: Q7DWBTTS

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/Q7DWBTTSR3SF2P5OXLA3DOP7YA \
  | 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: 87c760ce728ee45d3faebac1b1b9ffc0321052ffff1dac0fb1116777818c90f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdf73789d07279cfaa07c00eb7101dc913bdbba697d60ad02c9508630c24a829",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-08-21T20:56:55Z",
    "title_canon_sha256": "a128d3b96385bc8e189509e1a49482635c719e23cadd03e00b01c95f788ef83b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.4385",
    "kind": "arxiv",
    "version": 1
  }
}