Pith Number

pith:CO6KVBLD

pith:2019:CO6KVBLDJS756N3AW4LOC73BS4

not attested not anchored not stored refs pending

H2 model reduction of linear network systems by moment matching and optimization

I. Necoara, T.C. Ionescu

arxiv:1902.03348 v2 · 2019-02-09 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CO6KVBLDJS756N3AW4LOC73BS4}

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	2026-05-17T23:45:52.088087Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13bcaa85634cbfdf3760b716e17f619735d9939ec6c81881de43aa3f1c43eda1

Aliases

arxiv: 1902.03348 · arxiv_version: 1902.03348v2 · doi: 10.48550/arxiv.1902.03348 · pith_short_12: CO6KVBLDJS75 · pith_short_16: CO6KVBLDJS756N3A · pith_short_8: CO6KVBLD

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/CO6KVBLDJS756N3AW4LOC73BS4 \
  | 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: 13bcaa85634cbfdf3760b716e17f619735d9939ec6c81881de43aa3f1c43eda1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3ef157f5196d302bd1ab3fed25d2f242f4ca6923b8fc07fe110bbf2ddf42193",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-02-09T01:36:48Z",
    "title_canon_sha256": "67a4c9fbed8097d1cc846f8a375d033c5b6a8370441c724a2f414ca473ce4942"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.03348",
    "kind": "arxiv",
    "version": 2
  }
}