Pith Number

pith:GSVHVO37

pith:2018:GSVHVO37BB5YXEOMHKO7A6WYV6

not attested not anchored not stored refs pending

Bianchi I model as a prototype for a cyclical Universe

Andrea Marchi, Giovanni Montani, Riccardo Moriconi

arxiv:1805.05666 v1 · 2018-05-15 · 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{GSVHVO37BB5YXEOMHKO7A6WYV6}

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	2026-05-18T00:15:59.912046Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34aa7abb7f087b8b91cc3a9df07ad8af8b0a4a631b023a580f9afcb29e56d242

Aliases

arxiv: 1805.05666 · arxiv_version: 1805.05666v1 · doi: 10.48550/arxiv.1805.05666 · pith_short_12: GSVHVO37BB5Y · pith_short_16: GSVHVO37BB5YXEOM · pith_short_8: GSVHVO37

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/GSVHVO37BB5YXEOMHKO7A6WYV6 \
  | 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: 34aa7abb7f087b8b91cc3a9df07ad8af8b0a4a631b023a580f9afcb29e56d242

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af41f11ab02740f2de814c56fc641d66fd9b95e610469ca5f38bfeba392ed89b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-05-15T09:38:15Z",
    "title_canon_sha256": "26486b9fcb03e4dae39069bb18472c194bca9ced3124b2efc462d669dcad2819"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.05666",
    "kind": "arxiv",
    "version": 1
  }
}