Pith Number

pith:NAH4XHTR

pith:2019:NAH4XHTR3QZFYYUG2G32YI2TRW

not attested not anchored not stored refs pending

Boundary integral formulations of eigenvalue problems for elliptic differential operators with singular interactions and their numerical approximation by boundary element methods

Gerhard Unger, Markus Holzmann

arxiv:1907.04282 v1 · 2019-07-09 · math.SP · cs.NA · math-ph · math.AP · math.MP · math.NA

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NAH4XHTR3QZFYYUG2G32YI2TRW}

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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.

Cited by

1 paper in Pith

Integral formulation of Dirac singular waveguides

Receipt and verification

First computed	2026-05-17T23:41:02.781305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

680fcb9e71dc325c6286d1b7ac23538da7d9339536b711e67abc8922e203cd0a

Aliases

arxiv: 1907.04282 · arxiv_version: 1907.04282v1 · doi: 10.48550/arxiv.1907.04282 · pith_short_12: NAH4XHTR3QZF · pith_short_16: NAH4XHTR3QZFYYUG · pith_short_8: NAH4XHTR

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/NAH4XHTR3QZFYYUG2G32YI2TRW \
  | 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: 680fcb9e71dc325c6286d1b7ac23538da7d9339536b711e67abc8922e203cd0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a67ab5a3495fdfeeb31d5238510427bc2580f0b488e7841506d369e31beb5147",
    "cross_cats_sorted": [
      "cs.NA",
      "math-ph",
      "math.AP",
      "math.MP",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2019-07-09T16:36:12Z",
    "title_canon_sha256": "24774363fdd3d300e2bdb0a7b8ebe0b37c7fccd117fe5cbdc2d534288dc178d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04282",
    "kind": "arxiv",
    "version": 1
  }
}