Pith Number

pith:42KUAGHF

pith:2013:42KUAGHFC4GMMFJUF4YWXINFHM

not attested not anchored not stored refs pending

Hierarchization for the Sparse Grid Combination Technique

Philipp Hupp

arxiv:1309.0392 v1 · 2013-08-12 · cs.DC · 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{42KUAGHFC4GMMFJUF4YWXINFHM}

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	2026-05-18T03:14:27.402188Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6954018e5170cc615342f316ba1a53b35f6bfdbf038fd3592731a2654f57bd0

Aliases

arxiv: 1309.0392 · arxiv_version: 1309.0392v1 · doi: 10.48550/arxiv.1309.0392 · pith_short_12: 42KUAGHFC4GM · pith_short_16: 42KUAGHFC4GMMFJU · pith_short_8: 42KUAGHF

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/42KUAGHFC4GMMFJUF4YWXINFHM \
  | 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: e6954018e5170cc615342f316ba1a53b35f6bfdbf038fd3592731a2654f57bd0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a40970f1802dde5fdf6e932fcbd360db456b8d90a26a818925b9be4bf93b2bb",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2013-08-12T16:52:04Z",
    "title_canon_sha256": "ca6e9f0bbbcaa1950bcc55416fb51496d4ab131a18a7d7f09c65582756b1e4e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.0392",
    "kind": "arxiv",
    "version": 1
  }
}