Pith Number

pith:F37SNXGZ

pith:2021:F37SNXGZBHT4EJSOD2SWKAQF4E

not attested not anchored not stored refs pending

Introducing Physical Warp Drives

Alexey Bobrick, Gianni Martire

arxiv:2102.06824 v2 · 2021-02-12 · 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{F37SNXGZBHT4EJSOD2SWKAQF4E}

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

4 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

Receipt and verification

First computed	2026-07-05T02:16:02.186097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2eff26dcd909e7c2264e1ea5650205e1138f7a7cd1baa66c1ade82a973f4b425

Aliases

arxiv: 2102.06824 · arxiv_version: 2102.06824v2 · doi: 10.48550/arxiv.2102.06824 · pith_short_12: F37SNXGZBHT4 · pith_short_16: F37SNXGZBHT4EJSO · pith_short_8: F37SNXGZ

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/F37SNXGZBHT4EJSOD2SWKAQF4E \
  | 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: 2eff26dcd909e7c2264e1ea5650205e1138f7a7cd1baa66c1ade82a973f4b425

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3de65f6b18d6560c17b8dfb6cdaabe83367dba3d6a304dff8e441b12d656e96",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-02-12T23:58:39Z",
    "title_canon_sha256": "014059aa6965f8b6ff0032522bc575966264d02cf158fdffb56929c6cf477946"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.06824",
    "kind": "arxiv",
    "version": 2
  }
}