Pith Number

pith:YCDVUNHN

pith:2021:YCDVUNHNHRNJS3IVZSCLBE2M5N

not attested not anchored not stored refs pending

Hybrid coupling of finite element and boundary element methods using Nitsche's method and the Calderon projection

Erik Burman, Micha{\l} Bosy, Timo Betcke

arxiv:2106.01720 v2 · 2021-06-03 · 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{YCDVUNHNHRNJS3IVZSCLBE2M5N}

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	2026-07-05T04:06:29.667251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0875a34ed3c5a996d15cc84b0934ceb6bace78c8963fe84a5db770fa569535e

Aliases

arxiv: 2106.01720 · arxiv_version: 2106.01720v2 · doi: 10.48550/arxiv.2106.01720 · pith_short_12: YCDVUNHNHRNJ · pith_short_16: YCDVUNHNHRNJS3IV · pith_short_8: YCDVUNHN

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/YCDVUNHNHRNJS3IVZSCLBE2M5N \
  | 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: c0875a34ed3c5a996d15cc84b0934ceb6bace78c8963fe84a5db770fa569535e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6cd5e41514d0550f74de95b7acda142bdb53a8fd8efc0ceb02d64bbe1292bc8",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-06-03T09:47:21Z",
    "title_canon_sha256": "3851e9e5444346b6d5cd6e1290ede44ec1d9120c8fed62808b770b89c598bca4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.01720",
    "kind": "arxiv",
    "version": 2
  }
}