Pith Number

pith:D3AU424J

pith:2011:D3AU424JNBHQEEOV4OJUPBFKAE

not attested not anchored not stored refs pending

Solutions for f(R) gravity coupled with electromagnetic field

M. Halilsoy, S. Habib Mazharimousavi, T. Tahamtan

arxiv:1110.5085 v2 · 2011-10-23 · 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{D3AU424JNBHQEEOV4OJUPBFKAE}

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	2026-05-18T04:05:15.808752Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ec14e6b89684f0211d5e3934784aa0134dfa5af28f53ca7c74e22ae9b0c7c05

Aliases

arxiv: 1110.5085 · arxiv_version: 1110.5085v2 · doi: 10.48550/arxiv.1110.5085 · pith_short_12: D3AU424JNBHQ · pith_short_16: D3AU424JNBHQEEOV · pith_short_8: D3AU424J

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/D3AU424JNBHQEEOV4OJUPBFKAE \
  | 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: 1ec14e6b89684f0211d5e3934784aa0134dfa5af28f53ca7c74e22ae9b0c7c05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f07daa504375b54421dc915382b1b26836738fb31993ca58ccc281958aa943b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-10-23T20:41:45Z",
    "title_canon_sha256": "d63eb261737422f020a2209db6495aaedfc2e42307f7f121e59aede6b754cb80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.5085",
    "kind": "arxiv",
    "version": 2
  }
}