Pith Number

pith:TB2UWP7J

pith:2012:TB2UWP7JDRCXRTF24ZQO5YNVFR

not attested not anchored not stored refs pending

Observational constraints on electromagnetic Born-Infeld cosmology

Ariadna Montiel, Nora Bret\'on, Ruth Lazkoz

arxiv:1209.2107 v1 · 2012-09-10 · astro-ph.CO · 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{TB2UWP7JDRCXRTF24ZQO5YNVFR}

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	2026-05-18T03:43:41.736055Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98754b3fe91c4578ccbae660eee1b52c76bad64f0d896b5670c60ff65e7872b5

Aliases

arxiv: 1209.2107 · arxiv_version: 1209.2107v1 · doi: 10.48550/arxiv.1209.2107 · pith_short_12: TB2UWP7JDRCX · pith_short_16: TB2UWP7JDRCXRTF2 · pith_short_8: TB2UWP7J

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/TB2UWP7JDRCXRTF24ZQO5YNVFR \
  | 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: 98754b3fe91c4578ccbae660eee1b52c76bad64f0d896b5670c60ff65e7872b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7bc978d86ca170b29852bd2deed36b351012b929df26a9267cc47cdf2836c56",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-09-10T19:48:47Z",
    "title_canon_sha256": "99945a51bf69e74b2a7874943d0f99c4ed93ba2c0c0e202f531ab4b4fcdb069a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.2107",
    "kind": "arxiv",
    "version": 1
  }
}