Pith Number

pith:BV4N4YRR

pith:2012:BV4N4YRRDOVAX6ZYBMAOQZYFSK

not attested not anchored not stored refs pending

Quantum corrections to gravity and their implications for cosmology and astrophysics

A. M. Velasquez-Toribio, Davi C. Rodrigues, Ilya L. Shapiro, Julio C. Fabris, Paulo L. C. de Oliveira

arxiv:1203.2695 v1 · 2012-03-13 · astro-ph.CO · 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{BV4N4YRRDOVAX6ZYBMAOQZYFSK}

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	2026-05-18T01:58:09.563440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d78de62311baa0bfb380b00e8670592ada88ff7e1620bddc933e58051b55eef

Aliases

arxiv: 1203.2695 · arxiv_version: 1203.2695v1 · doi: 10.48550/arxiv.1203.2695 · pith_short_12: BV4N4YRRDOVA · pith_short_16: BV4N4YRRDOVAX6ZY · pith_short_8: BV4N4YRR

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/BV4N4YRRDOVAX6ZYBMAOQZYFSK \
  | 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: 0d78de62311baa0bfb380b00e8670592ada88ff7e1620bddc933e58051b55eef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bde9f65c44589e4d4cd9e8924c6b208dbf4c3af52d9ecfd12a8613d79730b0ad",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-03-13T02:20:58Z",
    "title_canon_sha256": "aaef78bfdd64b7a119e0d0a8edf9b40aa65b406b408a39a11e38b0d2971517fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.2695",
    "kind": "arxiv",
    "version": 1
  }
}