Pith Number

pith:FTMBGHWK

pith:2012:FTMBGHWKUTDFGEAG34UVDMJ24F

not attested not anchored not stored refs pending

Fab Four: When John and George play gravitation and cosmology

Andr\'e F\"uzfa, Antonin Kanfon, Aur\'elien Hees, Jean-Philippe Bruneton, Massimiliano Rinaldi, Sandrine Schl\"ogel

arxiv:1203.4446 v3 · 2012-03-20 · gr-qc · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FTMBGHWKUTDFGEAG34UVDMJ24F}

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	2026-05-18T03:37:08.735861Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2cd8131ecaa4c6531006df2951b13ae1632f6a0fe2947dbdabeac564d0160302

Aliases

arxiv: 1203.4446 · arxiv_version: 1203.4446v3 · doi: 10.48550/arxiv.1203.4446 · pith_short_12: FTMBGHWKUTDF · pith_short_16: FTMBGHWKUTDFGEAG · pith_short_8: FTMBGHWK

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/FTMBGHWKUTDFGEAG34UVDMJ24F \
  | 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: 2cd8131ecaa4c6531006df2951b13ae1632f6a0fe2947dbdabeac564d0160302

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92ce9f78cf4b5676ba5dfbcfbbdd4c56b95adde36456eecd116b2989df1f3e7d",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-03-20T14:11:57Z",
    "title_canon_sha256": "adb442447bfffd6ecfeb6f887756788ea641313b463818ff77937f259d7d41f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.4446",
    "kind": "arxiv",
    "version": 3
  }
}