Pith Number

pith:6YVJPJOF

pith:2018:6YVJPJOF5C3CHVGU2EKCGVSIKI

not attested not anchored not stored refs pending

On the classification of consistent boundary conditions for $ \mathit{f}(\mathit{R})$-Gravity

A. Shirzad, F. Shojai, H. Khodabakhshi

arxiv:1803.04306 v3 · 2018-03-12 · 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{6YVJPJOF5C3CHVGU2EKCGVSIKI}

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	2026-05-17T23:57:15.352849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f62a97a5c5e8b623d4d4d11423564852208b932ee22be809aa0c44e099d9a04e

Aliases

arxiv: 1803.04306 · arxiv_version: 1803.04306v3 · doi: 10.48550/arxiv.1803.04306 · pith_short_12: 6YVJPJOF5C3C · pith_short_16: 6YVJPJOF5C3CHVGU · pith_short_8: 6YVJPJOF

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/6YVJPJOF5C3CHVGU2EKCGVSIKI \
  | 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: f62a97a5c5e8b623d4d4d11423564852208b932ee22be809aa0c44e099d9a04e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03e8c8f56e7e5d80e2900e49adb5cd6d700235ede9f68ab12941693d8e521ff4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-03-12T15:20:38Z",
    "title_canon_sha256": "01f3aae9f3be720cf3a591c72969e2199dae4628a23702da4850653746e35694"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.04306",
    "kind": "arxiv",
    "version": 3
  }
}