Pith Number

pith:SHB27YPL

pith:2005:SHB27YPLORN37BFWFW5N76YKMX

not attested not anchored not stored refs pending

A sequential semidefinite programming method and an application in passive reduced-order modeling

Christoph Vogelbusch, Florian Jarre, Roland W. Freund

arxiv:math/0503135 v1 · 2005-03-08 · math.OC · cs.NA · 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{SHB27YPLORN37BFWFW5N76YKMX}

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	2026-06-03T22:06:16.592165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91c3afe1eb745bbf84b62dbadffb0a65fb0cab2b18aa8084a15e18993f43c870

Aliases

arxiv: math/0503135 · arxiv_version: math/0503135v1 · doi: 10.48550/arxiv.math/0503135 · pith_short_12: SHB27YPLORN3 · pith_short_16: SHB27YPLORN37BFW · pith_short_8: SHB27YPL

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/SHB27YPLORN37BFWFW5N76YKMX \
  | 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: 91c3afe1eb745bbf84b62dbadffb0a65fb0cab2b18aa8084a15e18993f43c870

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cff436d5abc1e1bd7738bc165cb66518b8630ebb02e9363255cb969203fb8f94",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "",
    "primary_cat": "math.OC",
    "submitted_at": "2005-03-08T02:04:40Z",
    "title_canon_sha256": "9712854c1b5b2e18c8f8d42018a440b505f6ab8c42a6f95d6dd3e9cca90acf20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0503135",
    "kind": "arxiv",
    "version": 1
  }
}