Pith Number

pith:2MQOOMME

pith:2018:2MQOOMME4KVTSKF6JGOKW4RKWT

not attested not anchored not stored refs pending

On a new class of infinitesimal group actions on pseudo-Riemannian manifolds

Sigbj{\o}rn Hervik

arxiv:1805.09402 v1 · 2018-05-23 · math-ph · gr-qc · math.DG · math.MP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2MQOOMME4KVTSKF6JGOKW4RKWT}

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	2026-05-18T00:15:04.107986Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d320e73184e2ab3928be499cab722ab4e53f951a471a339734e0ca267357c112

Aliases

arxiv: 1805.09402 · arxiv_version: 1805.09402v1 · doi: 10.48550/arxiv.1805.09402 · pith_short_12: 2MQOOMME4KVT · pith_short_16: 2MQOOMME4KVTSKF6 · pith_short_8: 2MQOOMME

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/2MQOOMME4KVTSKF6JGOKW4RKWT \
  | 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: d320e73184e2ab3928be499cab722ab4e53f951a471a339734e0ca267357c112

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3428557179215f99b1b5232193c2b19f7c9f00702f62b2d68806cedb74e3413",
    "cross_cats_sorted": [
      "gr-qc",
      "math.DG",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2018-05-23T19:45:59Z",
    "title_canon_sha256": "14e2df1bc5a0aa2f37e872ca7bd8b625829c82d37dcc9a12664cb7852f9784a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.09402",
    "kind": "arxiv",
    "version": 1
  }
}