Pith Number

pith:FCMK25OD

pith:2024:FCMK25ODCCAF3NDHQ46D3LCJ6M

not attested not anchored not stored refs pending

Data assimilation in 2D incompressible Navier-Stokes equations, using a stabilized explicit $O(\Delta t)^2$ leapfrog finite difference scheme run backward in time

Alfred S. Carasso

arxiv:2411.14617 v1 · 2024-11-21 · 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{FCMK25ODCCAF3NDHQ46D3LCJ6M}

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	2026-07-05T09:38:54.131310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2898ad75c310805db467873c3dac49f302335164bca71e17821cf86b7d8cfcab

Aliases

arxiv: 2411.14617 · arxiv_version: 2411.14617v1 · doi: 10.48550/arxiv.2411.14617 · pith_short_12: FCMK25ODCCAF · pith_short_16: FCMK25ODCCAF3NDH · pith_short_8: FCMK25OD

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/FCMK25ODCCAF3NDHQ46D3LCJ6M \
  | 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: 2898ad75c310805db467873c3dac49f302335164bca71e17821cf86b7d8cfcab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6fd53b333f3622fb233db142579a40f83fc8bf4d17b19fc80346737fcd472816",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2024-11-21T22:32:59Z",
    "title_canon_sha256": "ff12ccf1bb951a47d9fecef48447983f5ced51f2dd15be11eb6f437e84a255b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2411.14617",
    "kind": "arxiv",
    "version": 1
  }
}