Pith Number

pith:XE6FVWBE

pith:1999:XE6FVWBETWI4MJSPOBC6DDUECD

not attested not anchored not stored refs pending

Lightcone fluctuations in flat spacetimes with nontrivial topology

Hongwei Yu, L.H. Ford

arxiv:gr-qc/9904082 v2 · 1999-04-30 · gr-qc · hep-th · quant-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XE6FVWBETWI4MJSPOBC6DDUECD}

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	2026-05-18T01:08:01.094076Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b93c5ad8249d91c6264f7045e18e8410d33d7be96597bd6a1843e7a88ed52d6c

Aliases

arxiv: gr-qc/9904082 · arxiv_version: gr-qc/9904082v2 · doi: 10.48550/arxiv.gr-qc/9904082 · pith_short_12: XE6FVWBETWI4 · pith_short_16: XE6FVWBETWI4MJSP · pith_short_8: XE6FVWBE

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/XE6FVWBETWI4MJSPOBC6DDUECD \
  | 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: b93c5ad8249d91c6264f7045e18e8410d33d7be96597bd6a1843e7a88ed52d6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1decaac23fecf6af5349727b5e8535cd5bad4e326e54c0a0f037313fb9804f62",
    "cross_cats_sorted": [
      "hep-th",
      "quant-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-04-30T17:51:55Z",
    "title_canon_sha256": "fa5494496bebf27f71b611b5fddb3a919c6117d638c9878ed2ff8b03f4955699"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9904082",
    "kind": "arxiv",
    "version": 2
  }
}