Pith Number

pith:EHPE7UME

pith:2017:EHPE7UMEVXRFBWS3OUOZKWWMLT

not attested not anchored not stored refs pending

A Type D Non-Vacuum Spacetime with Causality Violating Curves, and its Physical Interpretation

Faizuddin Ahmed

arxiv:1712.01274 v1 · 2017-12-04 · 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{EHPE7UMEVXRFBWS3OUOZKWWMLT}

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	2026-05-18T00:28:51.216871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21de4fd184ade250da5b751d955acc5cf00d499cc417b82ba62b53cf568ba3b2

Aliases

arxiv: 1712.01274 · arxiv_version: 1712.01274v1 · doi: 10.48550/arxiv.1712.01274 · pith_short_12: EHPE7UMEVXRF · pith_short_16: EHPE7UMEVXRFBWS3 · pith_short_8: EHPE7UME

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/EHPE7UMEVXRFBWS3OUOZKWWMLT \
  | 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: 21de4fd184ade250da5b751d955acc5cf00d499cc417b82ba62b53cf568ba3b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "504714feae5b8495a78c878e1e65971bdbcbc9758cf6330e6e802bfdcf24d068",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-12-04T04:29:20Z",
    "title_canon_sha256": "961d27ea14994d763b108c0ededc4022583fc77666754a3682e287b7aa3fd9be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.01274",
    "kind": "arxiv",
    "version": 1
  }
}