Pith Number

pith:DMI75FPL

pith:2009:DMI75FPLDZ4MFD5ZDIS6GEC6WR

not attested not anchored not stored refs pending

New Models of f(R) Theories of Gravity

J. Kluson

arxiv:0910.5852 v3 · 2009-10-30 · 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{DMI75FPLDZ4MFD5ZDIS6GEC6WR}

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	2026-05-18T03:23:57.041744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b11fe95eb1e78c28fb91a25e3105eb447df0542d0e4fc8197b95a1a74ae5c78

Aliases

arxiv: 0910.5852 · arxiv_version: 0910.5852v3 · doi: 10.48550/arxiv.0910.5852 · pith_short_12: DMI75FPLDZ4M · pith_short_16: DMI75FPLDZ4MFD5Z · pith_short_8: DMI75FPL

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/DMI75FPLDZ4MFD5ZDIS6GEC6WR \
  | 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: 1b11fe95eb1e78c28fb91a25e3105eb447df0542d0e4fc8197b95a1a74ae5c78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "095d965d7799f7d45988dc719a5e34f81771b1aa7a551f3a6617c22d52523ce2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-10-30T11:39:16Z",
    "title_canon_sha256": "8359edb86986c18da6f5ae069605593d1b7b9f92f00a7bf18e1e5548e8e894f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.5852",
    "kind": "arxiv",
    "version": 3
  }
}