Pith Number

pith:XT3TXDS7

pith:2015:XT3TXDS7CFEZYPNIDMZBXMVBVH

not attested not anchored not stored refs pending

An Evolve-Then-Filter Regularized Reduced Order Model

David Wells, Traian Iliescu, Xuping Xie, Zhu Wang

arxiv:1506.07555 v2 · 2015-06-24 · 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{XT3TXDS7CFEZYPNIDMZBXMVBVH}

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	2026-05-18T01:09:07.027838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcf73b8e5f11499c3da81b321bb2a1a9feb22863514f14ab6c77eebc61c2a913

Aliases

arxiv: 1506.07555 · arxiv_version: 1506.07555v2 · doi: 10.48550/arxiv.1506.07555 · pith_short_12: XT3TXDS7CFEZ · pith_short_16: XT3TXDS7CFEZYPNI · pith_short_8: XT3TXDS7

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/XT3TXDS7CFEZYPNIDMZBXMVBVH \
  | 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: bcf73b8e5f11499c3da81b321bb2a1a9feb22863514f14ab6c77eebc61c2a913

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdf4fe24d6d727a1bdcaac79f87d5b5ef890285642f82a930a4addbf6fdc795e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2015-06-24T20:47:29Z",
    "title_canon_sha256": "bab0ce9525748b186b88768c4b9fbc591263704111f3fea06c5a4b10de50adb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.07555",
    "kind": "arxiv",
    "version": 2
  }
}