Pith Number

pith:Q3MCERVO

pith:2017:Q3MCERVO6M5YF6B4J5O7ZYZATV

not attested not anchored not stored refs pending

An improved discrete least-squares/reduced-basis method for parameterized elliptic PDEs

Clayton Webster, Guannan Zhang, Max Gunzburger, Michael Schneier

arxiv:1710.01237 v2 · 2017-10-03 · 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{Q3MCERVO6M5YF6B4J5O7ZYZATV}

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	2026-05-18T00:31:02.352998Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86d82246aef33b82f83c4f5dfce3209d74ed0dc900bb28f9383ad18e62def313

Aliases

arxiv: 1710.01237 · arxiv_version: 1710.01237v2 · doi: 10.48550/arxiv.1710.01237 · pith_short_12: Q3MCERVO6M5Y · pith_short_16: Q3MCERVO6M5YF6B4 · pith_short_8: Q3MCERVO

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/Q3MCERVO6M5YF6B4J5O7ZYZATV \
  | 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: 86d82246aef33b82f83c4f5dfce3209d74ed0dc900bb28f9383ad18e62def313

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb32f3eb0f7df6d6c82b4b8edf7431015a99585d0800e156c6b3d527f6dc956d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-10-03T16:04:34Z",
    "title_canon_sha256": "57fe6bb206d7146661d1fe748ed3a2b4f187a0f4e2c0e7388ec4cbed5c0515b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.01237",
    "kind": "arxiv",
    "version": 2
  }
}