Pith Number

pith:2RW3EKQX

pith:2017:2RW3EKQXEH2IIXSTR7SS4MOIS7

not attested not anchored not stored refs pending

Discrete Energy Laws for the First-Order System Least-Squares Finite-Element Approach

I. Lashuk, J. H. Adler, L. T. Zikatanov, S. P. MacLachlan

arxiv:1709.00385 v2 · 2017-09-01 · 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{2RW3EKQXEH2IIXSTR7SS4MOIS7}

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	2026-05-18T00:34:36.927332Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d46db22a1721f4845e538fe52e31c897f6778f8697810490c16cdf7bc87ef65c

Aliases

arxiv: 1709.00385 · arxiv_version: 1709.00385v2 · doi: 10.48550/arxiv.1709.00385 · pith_short_12: 2RW3EKQXEH2I · pith_short_16: 2RW3EKQXEH2IIXST · pith_short_8: 2RW3EKQX

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/2RW3EKQXEH2IIXSTR7SS4MOIS7 \
  | 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: d46db22a1721f4845e538fe52e31c897f6778f8697810490c16cdf7bc87ef65c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36c710ccd178650d187ab354b2df6be294166cbad47d2ce29cb9f7e80a18276d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-09-01T16:24:47Z",
    "title_canon_sha256": "fdb47014612ee2ccdc81f40481909dd9c797239b50648cf9b952d31128dcaab1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.00385",
    "kind": "arxiv",
    "version": 2
  }
}