Pith Number

pith:SO5PQOGE

pith:2018:SO5PQOGEIIONE3TG6ABAIS4OVV

not attested not anchored not stored refs pending

Robust Preconditioning for Space-Time Isogeometric Analysis of Parabolic Evolution Problems

Christoph Hofer, Martin Neum\"uller, Ulrich Langer

arxiv:1802.09277 v1 · 2018-02-26 · 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{SO5PQOGEIIONE3TG6ABAIS4OVV}

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	2026-05-18T00:22:34.222680Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93baf838c4421cd26e66f002044b8ead6a5b5b1bfa5591c80e7e10321e4320e2

Aliases

arxiv: 1802.09277 · arxiv_version: 1802.09277v1 · doi: 10.48550/arxiv.1802.09277 · pith_short_12: SO5PQOGEIION · pith_short_16: SO5PQOGEIIONE3TG · pith_short_8: SO5PQOGE

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/SO5PQOGEIIONE3TG6ABAIS4OVV \
  | 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: 93baf838c4421cd26e66f002044b8ead6a5b5b1bfa5591c80e7e10321e4320e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "282c382985724e2b741c82d5b990c84d6a0a89c9a9b6d2853bd1dc60cb34d7c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-02-26T12:52:17Z",
    "title_canon_sha256": "3d85feddc27f887124ba0e28eb57d8e356ff446608a73edea8e2fea2ab633e7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.09277",
    "kind": "arxiv",
    "version": 1
  }
}