Pith Number

pith:KTGDKDLB

pith:2019:KTGDKDLBRBI5476YFBP4BGV6MF

not attested not anchored not stored refs pending

On Particles and Splines in Bounded Domains

Matthias Kirchhart

arxiv:1901.09595 v1 · 2019-01-28 · 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{KTGDKDLBRBI5476YFBP4BGV6MF}

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	2026-07-05T09:51:24.362025Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54cc350d618851de7fd8285fc09abe615733d5bfdfd75164c0a32cc2f75823cd

Aliases

arxiv: 1901.09595 · arxiv_version: 1901.09595v1 · doi: 10.48550/arxiv.1901.09595 · pith_short_12: KTGDKDLBRBI5 · pith_short_16: KTGDKDLBRBI5476Y · pith_short_8: KTGDKDLB

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/KTGDKDLBRBI5476YFBP4BGV6MF \
  | 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: 54cc350d618851de7fd8285fc09abe615733d5bfdfd75164c0a32cc2f75823cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f9e2517fbdb720749da83873c3b49119b7ffe796a1c300360b65220546ab821",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-01-28T10:58:24Z",
    "title_canon_sha256": "c68b82d2ac59e1baf356fe2a6b81807f0c57a6416da4e18a4108be34792dcb00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.09595",
    "kind": "arxiv",
    "version": 1
  }
}