Pith Number

pith:XL5G3473

pith:2017:XL5G3473OY5ORCUFBDFYRKPDHX

not attested not anchored not stored refs pending

Spin, torsion and violation of null energy condition in traversable wormholes

Elisabetta Di Grezia, Emmanuele Battista, Gennaro Miele, Mattia Manfredonia

arxiv:1707.01508 v2 · 2017-07-05 · 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{XL5G3473OY5ORCUFBDFYRKPDHX}

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

Energy conditions in static, spherically symmetric spacetimes and effective geometries

Receipt and verification

First computed	2026-05-18T00:26:16.295797Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bafa6df3fb763ae88a8508cb88a9e33df8b824d99a8effc0b1dd81a196b427d0

Aliases

arxiv: 1707.01508 · arxiv_version: 1707.01508v2 · doi: 10.48550/arxiv.1707.01508 · pith_short_12: XL5G3473OY5O · pith_short_16: XL5G3473OY5ORCUF · pith_short_8: XL5G3473

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/XL5G3473OY5ORCUFBDFYRKPDHX \
  | 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: bafa6df3fb763ae88a8508cb88a9e33df8b824d99a8effc0b1dd81a196b427d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0269bcf4ce3540ac8103971df6dc494b65a2a4071fb9c3ab8140d7029a9bc0e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-07-05T18:01:11Z",
    "title_canon_sha256": "570ca48f3b2a58091bf151b508a371ff407153d847a360daceeae87260d0f3fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.01508",
    "kind": "arxiv",
    "version": 2
  }
}