Pith Number

pith:VJ25MLY2

pith:2021:VJ25MLY2IX5Z6PH4CDAS4USV2A

not attested not anchored not stored refs pending

A Generalized Multigrid Method for Solving Contact Problems in Lagrange Multiplier based Unfitted Finite Element Method

Hardik Kothari, Rolf Krause

arxiv:2106.16107 v1 · 2021-06-30 · 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{VJ25MLY2IX5Z6PH4CDAS4USV2A}

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	2026-07-05T03:54:21.784434Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa75d62f1a45fb9f3cfc10c12e5255d02c1f2e21455d0199e48c86ee82a13c6d

Aliases

arxiv: 2106.16107 · arxiv_version: 2106.16107v1 · doi: 10.48550/arxiv.2106.16107 · pith_short_12: VJ25MLY2IX5Z · pith_short_16: VJ25MLY2IX5Z6PH4 · pith_short_8: VJ25MLY2

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/VJ25MLY2IX5Z6PH4CDAS4USV2A \
  | 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: aa75d62f1a45fb9f3cfc10c12e5255d02c1f2e21455d0199e48c86ee82a13c6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7be0253b8b8bf0f5b0ae18a8a809f9dcd55877bdabb3b89628bdc3c2c01e2f9",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-06-30T14:55:48Z",
    "title_canon_sha256": "34996360e2884b30c5b1e46a2a2076fdbe82d66ed8d8f7c851889722e6d68535"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.16107",
    "kind": "arxiv",
    "version": 1
  }
}