Pith Number

pith:DTVJMFF6

pith:2012:DTVJMFF6JUNHFSMZORYTHE7XD6

not attested not anchored not stored refs pending

Conformal frames and the validity of Birkhoff's theorem

Diego S\'aez-G\'omez, Salvatore Capozziello

arxiv:1202.2540 v1 · 2012-02-12 · gr-qc · 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{DTVJMFF6JUNHFSMZORYTHE7XD6}

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	2026-05-18T01:58:30.914815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1cea9614be4d1a72c99974713393f71f9d9400cdc50c4d4f07bd5a391bf12a8e

Aliases

arxiv: 1202.2540 · arxiv_version: 1202.2540v1 · doi: 10.48550/arxiv.1202.2540 · pith_short_12: DTVJMFF6JUNH · pith_short_16: DTVJMFF6JUNHFSMZ · pith_short_8: DTVJMFF6

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/DTVJMFF6JUNHFSMZORYTHE7XD6 \
  | 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: 1cea9614be4d1a72c99974713393f71f9d9400cdc50c4d4f07bd5a391bf12a8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de2e940b7f68c6988eba19be74d8383a5c9dbc5f9fe5eba919569053de7a3264",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-02-12T16:13:47Z",
    "title_canon_sha256": "c5b344031481e496040bad9fa6d79ee55c447bbfb4549446e06a78fcc6f0c0fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2540",
    "kind": "arxiv",
    "version": 1
  }
}