Pith Number

pith:TBS7PHZ2

pith:2011:TBS7PHZ2FDIVN7K5LYWG5XENN7

not attested not anchored not stored refs pending

Numerical Computations with H(div)-Finite Elements for the Brinkman Problem

Juho K\"onn\"o, Rolf Stenberg

arxiv:1103.5338 v2 · 2011-03-28 · 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{TBS7PHZ2FDIVN7K5LYWG5XENN7}

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	2026-05-18T04:11:28.747550Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9865f79f3a28d156fd5d5e2c6edc8d6fd460bd3cb648020a8832b727f54d71b3

Aliases

arxiv: 1103.5338 · arxiv_version: 1103.5338v2 · doi: 10.48550/arxiv.1103.5338 · pith_short_12: TBS7PHZ2FDIV · pith_short_16: TBS7PHZ2FDIVN7K5 · pith_short_8: TBS7PHZ2

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/TBS7PHZ2FDIVN7K5LYWG5XENN7 \
  | 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: 9865f79f3a28d156fd5d5e2c6edc8d6fd460bd3cb648020a8832b727f54d71b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5da5c385d825c35e638fc63f73351c5bab99ed7e28c738df915fad8da370537a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-03-28T12:20:05Z",
    "title_canon_sha256": "2185cad296b48fad375206d0a6528b2bfd3e5e97285fc396a3f16848d3b80ebf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.5338",
    "kind": "arxiv",
    "version": 2
  }
}