Pith Number

pith:OFS54GFS

pith:2026:OFS54GFSZ6JSUT3LBH6DXPV53K

not attested not anchored not stored refs pending

Fast summation on rectangular cuboids with arbitrary periodicity in the DMK framework

Anna-Karin Tornberg, David Krantz, Ludvig af Klinteberg

arxiv:2606.27134 v1 · 2026-06-25 · 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{OFS54GFSZ6JSUT3LBH6DXPV53K}

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	2026-06-26T01:16:10.531755Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7165de18b2cf932a4f6b09fc3bbebddaa79bcca52ca48be58edc118b05e86b6b

Aliases

arxiv: 2606.27134 · arxiv_version: 2606.27134v1 · doi: 10.48550/arxiv.2606.27134 · pith_short_12: OFS54GFSZ6JS · pith_short_16: OFS54GFSZ6JSUT3L · pith_short_8: OFS54GFS

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/OFS54GFSZ6JSUT3LBH6DXPV53K \
  | 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: 7165de18b2cf932a4f6b09fc3bbebddaa79bcca52ca48be58edc118b05e86b6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81744824f8e3380017a836591e1cd36fad313f242e01d52d334108b51ea2e6ea",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-06-25T15:10:37Z",
    "title_canon_sha256": "497c3f853b941c5725ef495ab962983858fca7b7788c06107bc81ec263f9dd13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.27134",
    "kind": "arxiv",
    "version": 1
  }
}