Pith Number

pith:7E7GXZ5J

pith:2016:7E7GXZ5JPMJZDYLCZCTDCOJEGF

not attested not anchored not stored refs pending

Well-conditioned boundary integral equation formulations and Nystr\"om discretizations for the solution of Helmholtz problems with impedance boundary conditions in two-dimensional Lipschitz domains

Catalin Turc, Mohamed Kamel Riahi, Yassine Boubendir

arxiv:1607.00769 v1 · 2016-07-04 · 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{7E7GXZ5JPMJZDYLCZCTDCOJEGF}

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	2026-05-18T01:11:34.318547Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f93e6be7a97b1391e162c8a63139243147b98e95c6b2a8894d46b4b3e092aaf8

Aliases

arxiv: 1607.00769 · arxiv_version: 1607.00769v1 · doi: 10.48550/arxiv.1607.00769 · pith_short_12: 7E7GXZ5JPMJZ · pith_short_16: 7E7GXZ5JPMJZDYLC · pith_short_8: 7E7GXZ5J

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/7E7GXZ5JPMJZDYLCZCTDCOJEGF \
  | 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: f93e6be7a97b1391e162c8a63139243147b98e95c6b2a8894d46b4b3e092aaf8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94c7e966c1135118233d8120faef2026f369cc48bca0460e34364f67ec56ff38",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-07-04T08:34:06Z",
    "title_canon_sha256": "3bf5ae104a28cacd8bcbfad38a570d139f739c62f28e8a1827517bb7ebc1161d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.00769",
    "kind": "arxiv",
    "version": 1
  }
}