Pith Number

pith:KPKPZXGR

pith:2007:KPKPZXGRHMEZKZUTJKIAV7TCOW

not attested not anchored not stored refs pending

BDDC and FETI-DP under Minimalist Assumptions

Bed\v{r}ich Soused\'ik, Jan Mandel

arxiv:0708.4031 v1 · 2007-08-29 · math.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KPKPZXGRHMEZKZUTJKIAV7TCOW}

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	2026-05-18T02:47:31.890421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53d4fcdcd13b099566934a900afe62759a21ebeadb068a438c407ada50bb68e9

Aliases

arxiv: 0708.4031 · arxiv_version: 0708.4031v1 · doi: 10.48550/arxiv.0708.4031 · pith_short_12: KPKPZXGRHMEZ · pith_short_16: KPKPZXGRHMEZKZUT · pith_short_8: KPKPZXGR

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/KPKPZXGRHMEZKZUTJKIAV7TCOW \
  | 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: 53d4fcdcd13b099566934a900afe62759a21ebeadb068a438c407ada50bb68e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1a4b6860a11717fe2dfc1aa6e8da6d7d4b3fc617816ab68d237a5a58fd7a1e5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.NA",
    "submitted_at": "2007-08-29T22:10:07Z",
    "title_canon_sha256": "1cbd88e73e2807ef829ba2f811e72de966b6094e580b4ce81d32e09598ef89ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0708.4031",
    "kind": "arxiv",
    "version": 1
  }
}