Pith Number

pith:RPRDFYSE

pith:2017:RPRDFYSELPO7ID2DX5NIHX6LCY

not attested not anchored not stored refs pending

Spatial Filtering for Reduced Order Modeling

D. Wells, L.C. Berselli, T. Iliescu, x. Xie

arxiv:1707.04133 v1 · 2017-07-13 · 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{RPRDFYSELPO7ID2DX5NIHX6LCY}

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	2026-05-18T00:40:22.561564Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8be232e2445bddf40f43bf5a83dfcb161b6af1c68fa79f8db69181cf36a83c90

Aliases

arxiv: 1707.04133 · arxiv_version: 1707.04133v1 · doi: 10.48550/arxiv.1707.04133 · pith_short_12: RPRDFYSELPO7 · pith_short_16: RPRDFYSELPO7ID2D · pith_short_8: RPRDFYSE

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/RPRDFYSELPO7ID2DX5NIHX6LCY \
  | 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: 8be232e2445bddf40f43bf5a83dfcb161b6af1c68fa79f8db69181cf36a83c90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76252f8588dcba6c819067574ff2bae35dab200d10c3e64420727512b4c8812f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-07-13T14:07:58Z",
    "title_canon_sha256": "52191e699a23f5c722e02f7d549e162970993ba1c0b1d0cb3bec849146b48a7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.04133",
    "kind": "arxiv",
    "version": 1
  }
}