Pith Number

pith:2KJ5RCR5

pith:2012:2KJ5RCR5TLOH7JFNL43Q6OJ2UP

not attested not anchored not stored refs pending

f(R) Gravity from the renormalisation group

Ippocratis D. Saltas, Mark Hindmarsh

arxiv:1203.3957 v1 · 2012-03-18 · gr-qc · astro-ph.CO · 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{2KJ5RCR5TLOH7JFNL43Q6OJ2UP}

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	2026-05-18T03:59:48.533510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d293d88a3d9adc7fa4ad5f370f393aa3fc735719bbe2b1d151e96769471b2b77

Aliases

arxiv: 1203.3957 · arxiv_version: 1203.3957v1 · doi: 10.48550/arxiv.1203.3957 · pith_short_12: 2KJ5RCR5TLOH · pith_short_16: 2KJ5RCR5TLOH7JFN · pith_short_8: 2KJ5RCR5

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/2KJ5RCR5TLOH7JFNL43Q6OJ2UP \
  | 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: d293d88a3d9adc7fa4ad5f370f393aa3fc735719bbe2b1d151e96769471b2b77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54a9e82612dca381d8dc958100db91e626eb75fb2773bd4aa64f9537a509a26a",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-03-18T14:45:21Z",
    "title_canon_sha256": "0dacd32644224ce11ff55e7363b01ff8867aa93df4489deea1576349b9f9e28d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.3957",
    "kind": "arxiv",
    "version": 1
  }
}