Pith Number

pith:BGYTUJET

pith:2021:BGYTUJET2JWPIRBTKQNXJ3ZQHT

not attested not anchored not stored refs pending

Generic warp drives violate the null energy condition

Jessica Santiago (Victoria University of Wellington), Matt Visser (Victoria University of Wellington), Sebastian Schuster (Charles University of Prague)

arxiv:2105.03079 v2 · 2021-05-07 · 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{BGYTUJET2JWPIRBTKQNXJ3ZQHT}

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

5 papers in Pith

Steering a warp drive without exotic matter

On the boundary cost of source-consistent warp shells

Observer-robust energy condition verification for warp drive spacetimes

Novel Realizations of Warp Drive Spacetimes as Solutions of General Relativity

Receipt and verification

First computed	2026-07-05T04:11:45.307516Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09b13a2493d26cf44433541b74ef303cd610b259ca4f6e5125d49ad53302c5bb

Aliases

arxiv: 2105.03079 · arxiv_version: 2105.03079v2 · doi: 10.48550/arxiv.2105.03079 · pith_short_12: BGYTUJET2JWP · pith_short_16: BGYTUJET2JWPIRBT · pith_short_8: BGYTUJET

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/BGYTUJET2JWPIRBTKQNXJ3ZQHT \
  | 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: 09b13a2493d26cf44433541b74ef303cd610b259ca4f6e5125d49ad53302c5bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14c5da6ff2db6f7c3f6498f04d93b333cb3deaa3f17de2187cf24401523df204",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-05-07T06:25:26Z",
    "title_canon_sha256": "532abb1e3cb82e004e0ab48cf7c1e96a539152b550241c3b28a89a12721b23e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.03079",
    "kind": "arxiv",
    "version": 2
  }
}