Pith Number

pith:7WS343U3

pith:2007:7WS343U3L3FBMQDOC65VILQDAD

not attested not anchored not stored refs pending

Analogue spacetimes: Toy models for "quantum gravity''

Matt Visser (Victoria University of Wellington), Silke Weinfurtner (Victoria University of Wellington)

arxiv:0712.0427 v1 · 2007-12-04 · 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{7WS343U3L3FBMQDOC65VILQDAD}

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

Wind-Finslerian structure of black holes

Receipt and verification

First computed	2026-07-04T15:41:03.034878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fda5be6e9b5eca16406e17bb542e0300fd494ba08ed9bdc13572c04623ab92bb

Aliases

arxiv: 0712.0427 · arxiv_version: 0712.0427v1 · doi: 10.48550/arxiv.0712.0427 · pith_short_12: 7WS343U3L3FB · pith_short_16: 7WS343U3L3FBMQDO · pith_short_8: 7WS343U3

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/7WS343U3L3FBMQDOC65VILQDAD \
  | 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: fda5be6e9b5eca16406e17bb542e0300fd494ba08ed9bdc13572c04623ab92bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "922af30c6c612587387f296fea326d44a2291cb3bcf5777b093d5515dff49c70",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2007-12-04T03:35:09Z",
    "title_canon_sha256": "7733fbeefd142566ada7953cff00e696988e1b2a33fdab8e4f0aa6c4b735f6b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0712.0427",
    "kind": "arxiv",
    "version": 1
  }
}