Pith Number

pith:3FUWAKHL

pith:2018:3FUWAKHLZOGOFDL57E4N6LI4W4

not attested not anchored not stored refs pending

Spacetimes foliated by non-expanding null surfaces in the presence of a cosmological constant

Adam Szereszewski, Jerzy lewandowski

arxiv:1809.07666 v1 · 2018-09-20 · 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{3FUWAKHLZOGOFDL57E4N6LI4W4}

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

Locally Boost Isotropic Spacetimes and the Type ${\bf D}^k$ Condition

Receipt and verification

First computed	2026-07-04T23:50:34.172516Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9696028ebcb8ce28d7df938df2d1cb73b5f7fdd7941be0d21c100685e21ae1c

Aliases

arxiv: 1809.07666 · arxiv_version: 1809.07666v1 · doi: 10.48550/arxiv.1809.07666 · pith_short_12: 3FUWAKHLZOGO · pith_short_16: 3FUWAKHLZOGOFDL5 · pith_short_8: 3FUWAKHL

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/3FUWAKHLZOGOFDL57E4N6LI4W4 \
  | 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: d9696028ebcb8ce28d7df938df2d1cb73b5f7fdd7941be0d21c100685e21ae1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55046c7791e7efe72af06ffdecdc67e89421ecb9ab3636b058ff79f062f55efd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-09-20T15:12:19Z",
    "title_canon_sha256": "7bef731d456d7d5545ac176a8680a3b6d9e9c0640784325e24ef09fadc94d44d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.07666",
    "kind": "arxiv",
    "version": 1
  }
}