Pith Number

pith:YCUMPPPG

pith:2011:YCUMPPPGGEZKAQIHUSYFT32KOU

not attested not anchored not stored refs pending

Self-tuning and the derivation of the Fab Four

Antonio Padilla, Christos Charmousis, Edmund J. Copeland, Paul M. Saffin

arxiv:1112.4866 v1 · 2011-12-20 · hep-th · 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{YCUMPPPGGEZKAQIHUSYFT32KOU}

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	2026-05-18T03:22:53.755329Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0a8c7bde63132a04107a4b059ef4a75148e4011e942ec3b1e9a48446c61c9f7

Aliases

arxiv: 1112.4866 · arxiv_version: 1112.4866v1 · doi: 10.48550/arxiv.1112.4866 · pith_short_12: YCUMPPPGGEZK · pith_short_16: YCUMPPPGGEZKAQIH · pith_short_8: YCUMPPPG

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/YCUMPPPGGEZKAQIHUSYFT32KOU \
  | 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: c0a8c7bde63132a04107a4b059ef4a75148e4011e942ec3b1e9a48446c61c9f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12f63b7c69c331c07fe487764c79518b81479427e3d7526e21085b7eb6237446",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2011-12-20T22:17:03Z",
    "title_canon_sha256": "6a6e71b875b778a075086ae511b032d9c5ab97121b2a73685e1ec59bcaed4488"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.4866",
    "kind": "arxiv",
    "version": 1
  }
}