Pith Number

pith:4YUWGXL7

pith:2025:4YUWGXL762UXVDLL2LLF4JZ2C3

not attested not anchored not stored refs pending

On-the-fly Reduced-Order Modeling of the Filter Density Function with Time-Dependent Subspaces

Aidyn Aitzhan, Hessam Babaee, Peyman Givi

arxiv:2503.18271 v1 · 2025-03-24 · physics.flu-dyn · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4YUWGXL762UXVDLL2LLF4JZ2C3}

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	2026-07-05T10:38:06.515805Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e629635d7ff6a97a8d6bd2d65e273a16fc72befeb98c5a125b42bbea839e519e

Aliases

arxiv: 2503.18271 · arxiv_version: 2503.18271v1 · doi: 10.48550/arxiv.2503.18271 · pith_short_12: 4YUWGXL762UX · pith_short_16: 4YUWGXL762UXVDLL · pith_short_8: 4YUWGXL7

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/4YUWGXL762UXVDLL2LLF4JZ2C3 \
  | 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: e629635d7ff6a97a8d6bd2d65e273a16fc72befeb98c5a125b42bbea839e519e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "618656609ebdc28962a5de92749192b26f4443fba822af04ab3a9f698fdf6438",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2025-03-24T01:33:24Z",
    "title_canon_sha256": "8c53cbc4d10af491d1f012718d5c843d42e313c0a90555ab7b70300a3f4bef9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.18271",
    "kind": "arxiv",
    "version": 1
  }
}