Pith Number

pith:WRE5SAFW

pith:2020:WRE5SAFWGHTZFG345JAATFNJBZ

not attested not anchored not stored refs pending

Ghost from constraints: a generalization of Ostrogradsky theorem

Hayato Motohashi, Katsuki Aoki

arxiv:2001.06756 v2 · 2020-01-19 · hep-th · 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{WRE5SAFWGHTZFG345JAATFNJBZ}

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

Probing higher curvature gravity via ringdown with overtones

Receipt and verification

First computed	2026-07-05T01:33:18.962445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b449d900b631e7929b7cea400995a90e5ef6b5f63dbe1bafad1bcc63b605a05d

Aliases

arxiv: 2001.06756 · arxiv_version: 2001.06756v2 · doi: 10.48550/arxiv.2001.06756 · pith_short_12: WRE5SAFWGHTZ · pith_short_16: WRE5SAFWGHTZFG34 · pith_short_8: WRE5SAFW

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/WRE5SAFWGHTZFG345JAATFNJBZ \
  | 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: b449d900b631e7929b7cea400995a90e5ef6b5f63dbe1bafad1bcc63b605a05d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e77f1d70d07cfd2e1fd309f07c5c4068dbb4cc8bb11f54b7da1d1002ae24779",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2020-01-19T02:24:57Z",
    "title_canon_sha256": "74750ba5f84ed8bec2601bd6df3315b03be6385f67d272a8958ccb8bb5d7af9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.06756",
    "kind": "arxiv",
    "version": 2
  }
}