pith. sign in
Pith Number

pith:4UENQUG3

pith:2016:4UENQUG3NJEJDC4R6CRBT32BPF
not attested not anchored not stored refs pending

Stability and instability of Ellis and phantom wormholes: Are there ghosts?

Alexander A. Potapov, Amarjit Tamang, James C. Evans, Kamal K. Nandi, Ramil Izmailov

arxiv:1606.04356 v1 · 2016-06-06 · gr-qc

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{4UENQUG3NJEJDC4R6CRBT32BPF}

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 2026-05-18T01:12:02.110295Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

e508d850db6a48918b91f0a219ef417954a5b496fb572eeb974ae4a4cbf74eac

Aliases

arxiv: 1606.04356 · arxiv_version: 1606.04356v1 · doi: 10.48550/arxiv.1606.04356 · pith_short_12: 4UENQUG3NJEJ · pith_short_16: 4UENQUG3NJEJDC4R · pith_short_8: 4UENQUG3
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/4UENQUG3NJEJDC4R6CRBT32BPF \
  | 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: e508d850db6a48918b91f0a219ef417954a5b496fb572eeb974ae4a4cbf74eac
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "c1ac55259a967cc7c5f792e147ce776883bcd8f9be709449bd6f57625c132e5c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2016-06-06T07:27:03Z",
    "title_canon_sha256": "7901c93d2cf7a4e7095ab5295c8d525d5c67e618bc2dff9422f324e38813b830"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.04356",
    "kind": "arxiv",
    "version": 1
  }
}