Pith Number

pith:BMTHK4FZ

pith:2018:BMTHK4FZHGCPU7COOYIWGYXQ4K

not attested not anchored not stored refs pending

A time dependent Stokes interface problem: well-posedness and space-time finite element discretization

Arnold Reusken, Igor Voulis

arxiv:1803.06339 v2 · 2018-03-16 · 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{BMTHK4FZHGCPU7COOYIWGYXQ4K}

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	2026-05-18T00:10:59.844089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b267570b93984fa7c4e76116362f0e2a98e4e0352fef6c823aab2aa8f3da319

Aliases

arxiv: 1803.06339 · arxiv_version: 1803.06339v2 · doi: 10.48550/arxiv.1803.06339 · pith_short_12: BMTHK4FZHGCP · pith_short_16: BMTHK4FZHGCPU7CO · pith_short_8: BMTHK4FZ

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/BMTHK4FZHGCPU7COOYIWGYXQ4K \
  | 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: 0b267570b93984fa7c4e76116362f0e2a98e4e0352fef6c823aab2aa8f3da319

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a34fbc4c97f4d7914a66fa2857a09a3af34498231b6cfd9409a050a42545d32a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-03-16T17:45:06Z",
    "title_canon_sha256": "5e40ad76bb331c7d3112e0f67838353b75f835b15b8dd15d60f87cd2aea27193"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.06339",
    "kind": "arxiv",
    "version": 2
  }
}