Pith Number

pith:PMMXGF6O

pith:2018:PMMXGF6OYGN6HUJOHFCJIOXDU2

not attested not anchored not stored refs pending

Isochronous solutions of Einstein's equations and their Newtonian limit

Fabio Briscese, Francesco Calogero

arxiv:1803.01105 v1 · 2018-03-03 · gr-qc · math-ph · 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{PMMXGF6OYGN6HUJOHFCJIOXDU2}

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	2026-05-18T00:22:01.749807Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b197317cec19be3d12e3944943ae3a69faa836125ed4c5961880f95f8870773

Aliases

arxiv: 1803.01105 · arxiv_version: 1803.01105v1 · doi: 10.48550/arxiv.1803.01105 · pith_short_12: PMMXGF6OYGN6 · pith_short_16: PMMXGF6OYGN6HUJO · pith_short_8: PMMXGF6O

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/PMMXGF6OYGN6HUJOHFCJIOXDU2 \
  | 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: 7b197317cec19be3d12e3944943ae3a69faa836125ed4c5961880f95f8870773

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1176b651a1e1bda648225be57b9fb8a88086bf7338912b44b5da12d3c407bc6f",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-03-03T04:19:24Z",
    "title_canon_sha256": "c1595bf7eae6718b8dd47fbafc3deba1560b5d787c33abc319d4a48dcf4249a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.01105",
    "kind": "arxiv",
    "version": 1
  }
}