Pith Number

pith:PUSOHZBY

pith:2007:PUSOHZBYRVPQUPLZIJYY4G6INP

not attested not anchored not stored refs pending

Energy-momentum complexes in f(R) theories of gravity

Antti Putaja, Elias C. Vagenas, Iiro Vilja, Tuomas Multamaki

arxiv:0712.0276 v2 · 2007-12-03 · gr-qc · astro-ph · 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{PUSOHZBYRVPQUPLZIJYY4G6INP}

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	2026-07-04T15:28:01.345634Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d24e3e4388d5f0a3d7942718e1bc86bd4e178c36d01b903bdf2c6d12b4bc840

Aliases

arxiv: 0712.0276 · arxiv_version: 0712.0276v2 · doi: 10.48550/arxiv.0712.0276 · pith_short_12: PUSOHZBYRVPQ · pith_short_16: PUSOHZBYRVPQUPLZ · pith_short_8: PUSOHZBY

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/PUSOHZBYRVPQUPLZIJYY4G6INP \
  | 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: 7d24e3e4388d5f0a3d7942718e1bc86bd4e178c36d01b903bdf2c6d12b4bc840

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6031e3e1a785e256deec4eb226323a38d93769cc508474538d0de6d1a57216e8",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2007-12-03T12:52:43Z",
    "title_canon_sha256": "3270c43cf77e7ca584718c3ed58d8472d80947c586c9868fb76609e5c34806ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0712.0276",
    "kind": "arxiv",
    "version": 2
  }
}