Pith Number

pith:G4XCZOE6

pith:2019:G4XCZOE6BJGXG753IZ5AJYBXKF

not attested not anchored not stored refs pending

Spacelike hypersurfaces in standard static spacetimes

Giulio Colombo, Jos\'e A. S. Pelegr\'in, Marco Rigoli

arxiv:1901.08935 v1 · 2019-01-25 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G4XCZOE6BJGXG753IZ5AJYBXKF}

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	2026-05-17T23:55:31.135235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

372e2cb89e0a4d737fbb467a04e037514f5e86adaeecb1eeb8672f13bf109881

Aliases

arxiv: 1901.08935 · arxiv_version: 1901.08935v1 · doi: 10.48550/arxiv.1901.08935 · pith_short_12: G4XCZOE6BJGX · pith_short_16: G4XCZOE6BJGXG753 · pith_short_8: G4XCZOE6

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/G4XCZOE6BJGXG753IZ5AJYBXKF \
  | 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: 372e2cb89e0a4d737fbb467a04e037514f5e86adaeecb1eeb8672f13bf109881

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "091fd7150e9284cd12b7c85983cdc34456a6ae5c62606780be8ce1e3c661aa8e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-01-25T15:47:27Z",
    "title_canon_sha256": "5901c0ade04e8d73d43959687281cae00ad8cc2765ae2b39e2af1e3794b24d78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.08935",
    "kind": "arxiv",
    "version": 1
  }
}