Pith Number

pith:YTL4CNEK

pith:2018:YTL4CNEKKSVX45NEEA447SVE54

not attested not anchored not stored refs pending

Convergence of the backward Euler scheme for the operator-valued Riccati differential equation with semi-definite data

Etienne Emmrich, Monika Eisenmann, Volker Mehrmann

arxiv:1803.11152 v2 · 2018-03-29 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YTL4CNEKKSVX45NEEA447SVE54}

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	2026-05-18T00:09:00.017721Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4d7c1348a54ab7e75a42039cfcaa4ef194b13f682aba0f9ec9233e9abedc2ce

Aliases

arxiv: 1803.11152 · arxiv_version: 1803.11152v2 · doi: 10.48550/arxiv.1803.11152 · pith_short_12: YTL4CNEKKSVX · pith_short_16: YTL4CNEKKSVX45NE · pith_short_8: YTL4CNEK

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/YTL4CNEKKSVX45NEEA447SVE54 \
  | 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: c4d7c1348a54ab7e75a42039cfcaa4ef194b13f682aba0f9ec9233e9abedc2ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ca24e0c06660715efc784c9b6872d588851bc0d500f9e895e94e3241378a5e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-03-29T16:56:59Z",
    "title_canon_sha256": "4967896ab82556ca30218d4096afb7711fdb99779e0960ea8187ef1ede00ce66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.11152",
    "kind": "arxiv",
    "version": 2
  }
}