Pith Number

pith:5IOPLXNA

pith:2020:5IOPLXNADFVG3FDFNG46CEZQVR

not attested not anchored not stored refs pending

Model Reduction for Multi-Scale Transport Problems using Model-form Preserving Least-Squares Projections with Variable Transformation

Charles Merkle, Cheng Huang, Christopher R. Wentland, Karthik Duraisamy

arxiv:2011.02072 v6 · 2020-11-04 · 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{5IOPLXNADFVG3FDFNG46CEZQVR}

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	2026-07-05T03:19:02.424745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea1cf5dda0196a6d946569b9e11330ac412d9ae6a896ee5db65843ee037fbcad

Aliases

arxiv: 2011.02072 · arxiv_version: 2011.02072v6 · doi: 10.48550/arxiv.2011.02072 · pith_short_12: 5IOPLXNADFVG · pith_short_16: 5IOPLXNADFVG3FDF · pith_short_8: 5IOPLXNA

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/5IOPLXNADFVG3FDFNG46CEZQVR \
  | 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: ea1cf5dda0196a6d946569b9e11330ac412d9ae6a896ee5db65843ee037fbcad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a04d91fe2417173e0ce5a3d4e86ae25b8659faf1fa7bd772287cf44f6f09534",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2020-11-04T00:07:04Z",
    "title_canon_sha256": "1bbf7053a833da68a774d55ca4626314d6441c2c3667935958009d57d6493cc1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.02072",
    "kind": "arxiv",
    "version": 6
  }
}