Pith Number

pith:NABNMIFI

pith:2009:NABNMIFIJJGYTDVJH5ZNFMN3FB

not attested not anchored not stored refs pending

The Palatini formalism for higher-curvature gravity theories

Bert Janssen, Mar Bastero-Gil, Monica Borunda

arxiv:0901.1590 v1 · 2009-01-12 · 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{NABNMIFIJJGYTDVJH5ZNFMN3FB}

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	2026-05-18T00:03:00.819005Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6802d620a84a4d898ea93f72d2b1bb2865611ed586053a508ba18ab7e39eaa3d

Aliases

arxiv: 0901.1590 · arxiv_version: 0901.1590v1 · doi: 10.48550/arxiv.0901.1590 · pith_short_12: NABNMIFIJJGY · pith_short_16: NABNMIFIJJGYTDVJ · pith_short_8: NABNMIFI

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/NABNMIFIJJGYTDVJH5ZNFMN3FB \
  | 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: 6802d620a84a4d898ea93f72d2b1bb2865611ed586053a508ba18ab7e39eaa3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40f6620406f030b7e3bcb951f3453a857d05c88aa28be1f6ce8920ef0aae3e89",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-01-12T15:03:03Z",
    "title_canon_sha256": "36190f9e7d3e90f686c5c8eef088f7e92ec783afa05a3f993accd82d839135a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.1590",
    "kind": "arxiv",
    "version": 1
  }
}