Pith Number

pith:DO4JS5TK

pith:2019:DO4JS5TKQDESZ6BXLT4AAKDWEC

not attested not anchored not stored refs pending

Lie Algebra Expansions and Actions for Non-Relativistic Gravity

Eric Bergshoeff, Jose Manuel Izquierdo, Luca Romano, Tomas Ortin

arxiv:1904.08304 v2 · 2019-04-17 · 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{DO4JS5TKQDESZ6BXLT4AAKDWEC}

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

Interacting Galilean and Finite-Energy Carroll Fermions

Receipt and verification

First computed	2026-07-05T00:01:48.682192Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bb899766a80c92cf8375cf80028762085a347d8fa8bc75eca9beb76f87506b2

Aliases

arxiv: 1904.08304 · arxiv_version: 1904.08304v2 · doi: 10.48550/arxiv.1904.08304 · pith_short_12: DO4JS5TKQDES · pith_short_16: DO4JS5TKQDESZ6BX · pith_short_8: DO4JS5TK

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/DO4JS5TKQDESZ6BXLT4AAKDWEC \
  | 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: 1bb899766a80c92cf8375cf80028762085a347d8fa8bc75eca9beb76f87506b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6873fa7d0f5b69d386690bdaa02609552bacfb8df802b4c907df9c246463398f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-04-17T15:02:51Z",
    "title_canon_sha256": "0a0acf1c9fd1089431c885e61adb6c0c457ea9816d457afb1c2c05636143928e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.08304",
    "kind": "arxiv",
    "version": 2
  }
}