Pith Number

pith:VPCN5WBG

pith:2017:VPCN5WBGW3UZFS2RFYJUNFCOVY

not attested not anchored not stored refs pending

On $f(R)$ gravity in scalar-tensor theories

Amare Abebe, Joseph Ntahompagaze, Manasse Mbonye

arxiv:1706.07722 v2 · 2017-06-23 · 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{VPCN5WBGW3UZFS2RFYJUNFCOVY}

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	2026-05-18T00:41:31.844148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abc4ded826b6e992cb512e1346944eae31fb3464ad8043e3424c2968cb87d131

Aliases

arxiv: 1706.07722 · arxiv_version: 1706.07722v2 · doi: 10.48550/arxiv.1706.07722 · pith_short_12: VPCN5WBGW3UZ · pith_short_16: VPCN5WBGW3UZFS2R · pith_short_8: VPCN5WBG

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/VPCN5WBGW3UZFS2RFYJUNFCOVY \
  | 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: abc4ded826b6e992cb512e1346944eae31fb3464ad8043e3424c2968cb87d131

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "138db5daf381c94afbcf537a3d601a71e665a20911ec17ec10e7b0071d91e1a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-06-23T14:29:02Z",
    "title_canon_sha256": "05fbecbe4b3275d3a8eff22ad2a06952bc3860f06ef87b7efb411e1931c93195"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.07722",
    "kind": "arxiv",
    "version": 2
  }
}