Pith Number

pith:IT525HJD

pith:2009:IT525HJDNM324S4LOPXCWCSKAT

not attested not anchored not stored refs pending

Spikes in the Mixmaster regime of G_2 cosmologies

David Garfinkle, Frans Pretorius, Lars Andersson, Woei Chet Lim

arxiv:0904.1546 v2 · 2009-04-09 · 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{IT525HJDNM324S4LOPXCWCSKAT}

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	2026-07-04T15:51:08.170619Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44fbae9d236b37ae4b8b73ee2b0a4a04e2f91b41bc4dc74c2e19852aae4888ca

Aliases

arxiv: 0904.1546 · arxiv_version: 0904.1546v2 · doi: 10.48550/arxiv.0904.1546 · pith_short_12: IT525HJDNM32 · pith_short_16: IT525HJDNM324S4L · pith_short_8: IT525HJD

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/IT525HJDNM324S4LOPXCWCSKAT \
  | 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: 44fbae9d236b37ae4b8b73ee2b0a4a04e2f91b41bc4dc74c2e19852aae4888ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32f7df817b75d8174eeb681731784142f599cce0988b54cdeb3ee0ee13352503",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-04-09T15:06:49Z",
    "title_canon_sha256": "9cddbc07be3ca77c766624ee516d19f21503d3603a28a4e1c90997f4ba923ee9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.1546",
    "kind": "arxiv",
    "version": 2
  }
}