Pith Number

pith:T5LWXYOX

pith:2018:T5LWXYOXDL4F2HM3UHMCKYP6AG

not attested not anchored not stored refs pending

SNS: A Solution-based Nonlinear Subspace method for time-dependent model order reduction

Deshawn Coombs, Robert Anderson, Youngsoo Choi

arxiv:1809.04064 v4 · 2018-09-11 · math.NA · cs.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{T5LWXYOXDL4F2HM3UHMCKYP6AG}

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	2026-06-04T20:13:18.993011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f576be1d71af85d1d9ba1d82561fe018b01b93760742b819e13f0cc035a3299

Aliases

arxiv: 1809.04064 · arxiv_version: 1809.04064v4 · doi: 10.48550/arxiv.1809.04064 · pith_short_12: T5LWXYOXDL4F · pith_short_16: T5LWXYOXDL4F2HM3 · pith_short_8: T5LWXYOX

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/T5LWXYOXDL4F2HM3UHMCKYP6AG \
  | 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: 9f576be1d71af85d1d9ba1d82561fe018b01b93760742b819e13f0cc035a3299

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77f135801f58fa8b4ed0e9f7765d9e8ba8fa89c001f817c152b1e4cd4965b60e",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-09-11T17:52:55Z",
    "title_canon_sha256": "98418dfb05ed65771681aaf57a9f0d067d9981f5a3b223e5c7d9f9e85ab66917"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.04064",
    "kind": "arxiv",
    "version": 4
  }
}