Pith Number

pith:LEWUQ6LS

pith:2018:LEWUQ6LS7V6IY67SE3D3IOSTN6

not attested not anchored not stored refs pending

Uniform in time error estimates for a finite element method applied to a downscaling data assimilation algorithm for the Navier-Stokes equations

Edriss S. Titi, Garc\'ia-Archilla, Julia Novo

arxiv:1807.08735 v2 · 2018-07-23 · math.NA · math.AP · physics.ao-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{LEWUQ6LS7V6IY67SE3D3IOSTN6}

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	2026-05-17T23:52:15.841924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

592d487972fd7c8c7bf226c7b43a536f8d1baf3c64094ad073a6c347e9bd70d7

Aliases

arxiv: 1807.08735 · arxiv_version: 1807.08735v2 · doi: 10.48550/arxiv.1807.08735 · pith_short_12: LEWUQ6LS7V6I · pith_short_16: LEWUQ6LS7V6IY67S · pith_short_8: LEWUQ6LS

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/LEWUQ6LS7V6IY67SE3D3IOSTN6 \
  | 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: 592d487972fd7c8c7bf226c7b43a536f8d1baf3c64094ad073a6c347e9bd70d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee0af62138b2ea3b282280a4480e621641cedf0c70b50e817b6c7b64dd6e25a9",
    "cross_cats_sorted": [
      "math.AP",
      "physics.ao-ph",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-07-23T17:33:21Z",
    "title_canon_sha256": "3a3472ac7fd0371a2f2baecca1421c0689acd153af8d773e3928ddedc6b6dd9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.08735",
    "kind": "arxiv",
    "version": 2
  }
}