Pith Number

pith:NBBXUA4K

pith:2012:NBBXUA4KG2FS5UH75IL3NKMXVJ

not attested not anchored not stored refs pending

Lagrangian theory of structure formation in relativistic cosmology I: Lagrangian framework and definition of a nonperturbative approximation

Matthias Ostermann, Thomas Buchert

arxiv:1203.6263 v2 · 2012-03-28 · 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{NBBXUA4KG2FS5UH75IL3NKMXVJ}

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.

Cited by

1 paper in Pith

Novel Realizations of Warp Drive Spacetimes as Solutions of General Relativity

Receipt and verification

First computed	2026-05-18T03:50:25.226089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68437a038a368b2ed0ffea17b6a997aa599ca08d295c4dcde63337712b1c6435

Aliases

arxiv: 1203.6263 · arxiv_version: 1203.6263v2 · doi: 10.48550/arxiv.1203.6263 · pith_short_12: NBBXUA4KG2FS · pith_short_16: NBBXUA4KG2FS5UH7 · pith_short_8: NBBXUA4K

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/NBBXUA4KG2FS5UH75IL3NKMXVJ \
  | 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: 68437a038a368b2ed0ffea17b6a997aa599ca08d295c4dcde63337712b1c6435

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "635da3816a5126f62419ab9bbe0fd03db5d4c08a101f03d57c953acfa9b81155",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-03-28T13:35:08Z",
    "title_canon_sha256": "6be0f43ce0b313dbbd75e0f6bfae193303e7e9713dc51cb5f47d0702181be206"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.6263",
    "kind": "arxiv",
    "version": 2
  }
}