Pith Number

pith:BSHLDQBM

pith:2016:BSHLDQBMM7A4H3ST43QTNMVPBP

not attested not anchored not stored refs pending

The Spectral Ewald method for singly periodic domains

Anna-Karin Tornberg, Davoud Saffar Shamshirgar

arxiv:1611.09538 v2 · 2016-11-29 · 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{BSHLDQBMM7A4H3ST43QTNMVPBP}

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	2026-05-18T00:35:35.254966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c8eb1c02c67c1c3ee53e6e136b2af0bfd8bc20edb826e7f7cd9c28c4a76cdef

Aliases

arxiv: 1611.09538 · arxiv_version: 1611.09538v2 · doi: 10.48550/arxiv.1611.09538 · pith_short_12: BSHLDQBMM7A4 · pith_short_16: BSHLDQBMM7A4H3ST · pith_short_8: BSHLDQBM

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/BSHLDQBMM7A4H3ST43QTNMVPBP \
  | 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: 0c8eb1c02c67c1c3ee53e6e136b2af0bfd8bc20edb826e7f7cd9c28c4a76cdef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbe8ee306a5890f09679590ecffe3807fb1cd0f6670682618907666457d9ed58",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-11-29T09:33:53Z",
    "title_canon_sha256": "804b3a9cb8467a3f3f7b98aa5379d941ed5e889dc3de10fd2bbe2a527d93985a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.09538",
    "kind": "arxiv",
    "version": 2
  }
}