Pith Number

pith:WPOHMFPD

pith:2000:WPOHMFPDAL2R6NLUM44E7PKMTD

not attested not anchored not stored refs pending

Scalar fields, energy conditions, and traversable wormholes

Carlos Barcelo, Matt Visser

arxiv:gr-qc/0003025 v2 · 2000-03-08 · 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{WPOHMFPDAL2R6NLUM44E7PKMTD}

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	2026-07-04T16:19:36.655394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3dc7615e302f51f357467384fbd4c98cf67ca0c5eb63cc4bc682f8392175587

Aliases

arxiv: gr-qc/0003025 · arxiv_version: gr-qc/0003025v2 · doi: 10.48550/arxiv.gr-qc/0003025 · pith_short_12: WPOHMFPDAL2R · pith_short_16: WPOHMFPDAL2R6NLU · pith_short_8: WPOHMFPD

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/WPOHMFPDAL2R6NLUM44E7PKMTD \
  | 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: b3dc7615e302f51f357467384fbd4c98cf67ca0c5eb63cc4bc682f8392175587

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22d4ac438a5c859b2b7a0058ef0cdf22c4b9767380a699ffb292c9624c9deb33",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2000-03-08T03:14:11Z",
    "title_canon_sha256": "35eed9e3406733af2d2076f2be5c5f8ce4ca50d1372ef2efde22f4df7ea0971e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0003025",
    "kind": "arxiv",
    "version": 2
  }
}