Pith Number

pith:BF3FZID6

pith:2019:BF3FZID66VWBQPN4VWIXQR4ZUX

not attested not anchored not stored refs pending

Comparisons of Two Reduced-Order Models for Linearized Unsteady Aerodynamic Identification

Jiaqing Kou, Weiwei Zhang

arxiv:1905.03250 v1 · 2019-05-08 · physics.comp-ph · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BF3FZID66VWBQPN4VWIXQR4ZUX}

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	2026-05-17T23:46:40.604462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09765ca07ef56c183dbcad91784799a5e4cf861799244e85fbebc9dac31e4a54

Aliases

arxiv: 1905.03250 · arxiv_version: 1905.03250v1 · doi: 10.48550/arxiv.1905.03250 · pith_short_12: BF3FZID66VWB · pith_short_16: BF3FZID66VWBQPN4 · pith_short_8: BF3FZID6

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/BF3FZID66VWBQPN4VWIXQR4ZUX \
  | 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: 09765ca07ef56c183dbcad91784799a5e4cf861799244e85fbebc9dac31e4a54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "504632ea3cf11a853e2885754adf7e8ebc772907dcad781f2dd0155af31dcae6",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2019-05-08T06:56:05Z",
    "title_canon_sha256": "3e723a9eeed01374a5ec70b27e1a3a1f35eb52f61187ab024a6b799d7f66504b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.03250",
    "kind": "arxiv",
    "version": 1
  }
}