Pith Number

pith:YLUZNNRO

pith:2001:YLUZNNRO4ZIQQUGDXS5XSGWYF6

not attested not anchored not stored refs pending

Fuchsian analysis of S^2xS^1 and S^3 Gowdy spacetimes

Fredrik St{\aa}hl

arxiv:gr-qc/0109011 v1 · 2001-09-04 · 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{YLUZNNRO4ZIQQUGDXS5XSGWYF6}

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	2026-05-18T04:17:53.124580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2e996b62ee6510850c3bcbb791ad82f93dfb39925888cd449389f83ee9c0f8b

Aliases

arxiv: gr-qc/0109011 · arxiv_version: gr-qc/0109011v1 · doi: 10.48550/arxiv.gr-qc/0109011 · pith_short_12: YLUZNNRO4ZIQ · pith_short_16: YLUZNNRO4ZIQQUGD · pith_short_8: YLUZNNRO

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/YLUZNNRO4ZIQQUGDXS5XSGWYF6 \
  | 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: c2e996b62ee6510850c3bcbb791ad82f93dfb39925888cd449389f83ee9c0f8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aaeca5c60ba6a7b1b4c31104f3cad520235ab7ab2ff7011e2e755084389d5ae4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2001-09-04T13:46:17Z",
    "title_canon_sha256": "733097cecd57e96b817de705d729112fa55c855b52d46eb0477c1e77678e79d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0109011",
    "kind": "arxiv",
    "version": 1
  }
}