Pith Number

pith:UQW34AT6

pith:2021:UQW34AT6YR2FOZ75MLPYDXRW7N

not attested not anchored not stored refs pending

Model Reduction of Linear Dynamical Systems via Balancing for Bayesian Inference

Akil Narayan, Christopher Beattie, Elizabeth Qian, Jemima M. Tabeart, Jiahua Jiang, Peter R. Kramer, Serkan Gugercin

arxiv:2111.13246 v1 · 2021-11-25 · eess.SY · cs.NA · cs.SY · 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{UQW34AT6YR2FOZ75MLPYDXRW7N}

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	2026-07-05T03:35:19.249940Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a42dbe027ec4745767fd62df81de36fb4a21dc02eb91bdca3a4e1b4149be8b83

Aliases

arxiv: 2111.13246 · arxiv_version: 2111.13246v1 · doi: 10.48550/arxiv.2111.13246 · pith_short_12: UQW34AT6YR2F · pith_short_16: UQW34AT6YR2FOZ75 · pith_short_8: UQW34AT6

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/UQW34AT6YR2FOZ75MLPYDXRW7N \
  | 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: a42dbe027ec4745767fd62df81de36fb4a21dc02eb91bdca3a4e1b4149be8b83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "312cdc8b1e2f2a97f8c62448c2d52ddde8884abd55b209e069eeb67df96bbbe4",
    "cross_cats_sorted": [
      "cs.NA",
      "cs.SY",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2021-11-25T20:45:55Z",
    "title_canon_sha256": "408411fb4b07165d4514c04af755a935ab73f29baee7ddb1b71d027b4004b175"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.13246",
    "kind": "arxiv",
    "version": 1
  }
}