Pith Number

pith:KCH3P3JK

pith:2019:KCH3P3JKWFLLJ6DGONWSAWDQIR

not attested not anchored not stored refs pending

Kriging in Tensor Train data format

Alexander Litvinenko, Dishi Liu, Sergey Dolgov

arxiv:1904.09668 v1 · 2019-04-21 · stat.CO · math.NA · stat.ME

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KCH3P3JKWFLLJ6DGONWSAWDQIR}

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	2026-05-17T23:48:03.683938Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

508fb7ed2ab156b4f866736d205870445e6a36589fb0a9d5a0bfec2d9e5ae482

Aliases

arxiv: 1904.09668 · arxiv_version: 1904.09668v1 · doi: 10.48550/arxiv.1904.09668 · pith_short_12: KCH3P3JKWFLL · pith_short_16: KCH3P3JKWFLLJ6DG · pith_short_8: KCH3P3JK

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/KCH3P3JKWFLLJ6DGONWSAWDQIR \
  | 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: 508fb7ed2ab156b4f866736d205870445e6a36589fb0a9d5a0bfec2d9e5ae482

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77f2d5e91409ac41df9bf1d42cd5ea922054dd2387dcd2fa96396c87f4437ee3",
    "cross_cats_sorted": [
      "math.NA",
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2019-04-21T22:01:01Z",
    "title_canon_sha256": "a037bf3f68cdbf50e1ac6732d11d13a1b73a6492101661d6aca2331d28f26806"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.09668",
    "kind": "arxiv",
    "version": 1
  }
}