Pith Number

pith:IBI7TZKY

pith:2018:IBI7TZKYU5IYADTHRPHAWDVNXC

not attested not anchored not stored refs pending

Conformally Flat Collapsing Stars in f (R) gravity

Narayan Banerjee, Rituparno Goswami, Soumya Chakrabarti, Sunil Maharaj

arxiv:1808.06545 v2 · 2018-08-20 · 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{IBI7TZKYU5IYADTHRPHAWDVNXC}

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	2026-05-18T00:01:28.703678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4051f9e558a751800e678bce0b0eadb892d0d5990954eee1d1b35383223b0f4c

Aliases

arxiv: 1808.06545 · arxiv_version: 1808.06545v2 · doi: 10.48550/arxiv.1808.06545 · pith_short_12: IBI7TZKYU5IY · pith_short_16: IBI7TZKYU5IYADTH · pith_short_8: IBI7TZKY

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/IBI7TZKYU5IYADTHRPHAWDVNXC \
  | 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: 4051f9e558a751800e678bce0b0eadb892d0d5990954eee1d1b35383223b0f4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4aecdb04f0dbbc3e987c666ed315765ea2d6a4ead6b8062f209bb9ccf3a4bd66",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-08-20T16:17:53Z",
    "title_canon_sha256": "bb1e0ed7ec970e381c27537565e3a3f639d7a29258556c0c589484b802561e61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.06545",
    "kind": "arxiv",
    "version": 2
  }
}