Pith Number

pith:R7KTJQGZ

pith:2004:R7KTJQGZBX46MXBE6I4DRA6OUK

not attested not anchored not stored refs pending

Some mathematical problems in numerical relativity

Bela Szilagyi, Jeffrey Winicour, Maria Babiuc

arxiv:gr-qc/0404092 v1 · 2004-04-21 · 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{R7KTJQGZBX46MXBE6I4DRA6OUK}

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	2026-05-18T04:23:46.939144Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fd534c0d90df9e65c24f2383883cea28cf89544ba616179e420970b10d267d5

Aliases

arxiv: gr-qc/0404092 · arxiv_version: gr-qc/0404092v1 · doi: 10.48550/arxiv.gr-qc/0404092 · pith_short_12: R7KTJQGZBX46 · pith_short_16: R7KTJQGZBX46MXBE · pith_short_8: R7KTJQGZ

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/R7KTJQGZBX46MXBE6I4DRA6OUK \
  | 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: 8fd534c0d90df9e65c24f2383883cea28cf89544ba616179e420970b10d267d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c76e013bfeafc5fe29d90ad670724c3f0766afd46f1c34deac7c9b2e0f142aa2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2004-04-21T19:56:48Z",
    "title_canon_sha256": "25c6ba5fe7c7a7871e20efb784f3b6323262a8ed31bde1da7aa697f9ae7b05b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0404092",
    "kind": "arxiv",
    "version": 1
  }
}