Pith Number

pith:LT3SGVSI

pith:2018:LT3SGVSIXWL4E3IHHH2KCHWSB6

not attested not anchored not stored refs pending

Big Bounce cosmology for Palatini $R^2$ gravity with a Nieh-Yan term

Flavio Bombacigno, Giovanni Montani

arxiv:1809.07563 v2 · 2018-09-20 · 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{LT3SGVSIXWL4E3IHHH2KCHWSB6}

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	2026-05-17T23:45:52.829201Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5cf7235648bd97c26d0739f4a11ed20f93ee783ee607d5a43e2e8d9537cdc57f

Aliases

arxiv: 1809.07563 · arxiv_version: 1809.07563v2 · doi: 10.48550/arxiv.1809.07563 · pith_short_12: LT3SGVSIXWL4 · pith_short_16: LT3SGVSIXWL4E3IH · pith_short_8: LT3SGVSI

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/LT3SGVSIXWL4E3IHHH2KCHWSB6 \
  | 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: 5cf7235648bd97c26d0739f4a11ed20f93ee783ee607d5a43e2e8d9537cdc57f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b1d45bb174d4bd2b188c213a0939a2938c694882b82e968d09c928fcf6beaf9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-09-20T10:47:29Z",
    "title_canon_sha256": "54f472ba309b2a7ad4e9d393b01b4ad02530617ed725801fb18e4386392b4bed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.07563",
    "kind": "arxiv",
    "version": 2
  }
}