Pith Number

pith:IPPHRAZV

pith:2017:IPPHRAZVJXBV62MUN2GYO6GH6K

not attested not anchored not stored refs pending

Kundt spacetimes in the Gauss-Bonnet Gravity

Jiri Podolsky, Ondrej Hruska

arxiv:1801.00307 v1 · 2017-12-31 · gr-qc · 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{IPPHRAZVJXBV62MUN2GYO6GH6K}

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	2026-05-18T00:26:58.738745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43de7883354dc35f69946e8d8778c7f28f0642c83ec28391d4abccb808836c10

Aliases

arxiv: 1801.00307 · arxiv_version: 1801.00307v1 · doi: 10.48550/arxiv.1801.00307 · pith_short_12: IPPHRAZVJXBV · pith_short_16: IPPHRAZVJXBV62MU · pith_short_8: IPPHRAZV

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/IPPHRAZVJXBV62MUN2GYO6GH6K \
  | 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: 43de7883354dc35f69946e8d8778c7f28f0642c83ec28391d4abccb808836c10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a63d658ac70ec85da07ff2747a64e93a188f7967cddf4368fb6f6cfe98e17535",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-12-31T15:57:10Z",
    "title_canon_sha256": "d87d4be205eaecee599e4090a0189f4730e582d4cfdd9aa8153c0b2d1bc8d8bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.00307",
    "kind": "arxiv",
    "version": 1
  }
}