Pith Number

pith:73CGM75H

pith:2026:73CGM75H7JYNCDG7INA5BLX2LZ

not attested not anchored not stored refs pending

Rational approximation and intrinsic Gaussian processes

Christopher Beattie, Colby Stakun-Pickering, David Higdon, Jared Clark, Leanna House

arxiv:2605.17168 v1 · 2026-05-16 · 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{73CGM75H7JYNCDG7INA5BLX2LZ}

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	2026-05-20T00:03:43.006853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fec4667fa7fa70d10cdf4341d0aefa5e60f001b61192a4ec5af1f66c73041ba8

Aliases

arxiv: 2605.17168 · arxiv_version: 2605.17168v1 · doi: 10.48550/arxiv.2605.17168 · pith_short_12: 73CGM75H7JYN · pith_short_16: 73CGM75H7JYNCDG7 · pith_short_8: 73CGM75H

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/73CGM75H7JYNCDG7INA5BLX2LZ \
  | 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: fec4667fa7fa70d10cdf4341d0aefa5e60f001b61192a4ec5af1f66c73041ba8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d33c8f06fdda4052f7dbd5cb07a9e00d5f85eee3ae47668f6cff3a9f7bcbf64",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-05-16T21:42:06Z",
    "title_canon_sha256": "df0f00e14ebe98f30bf7d34f9a941f968ca94b15795bc990feafe95f5f9fd0cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.17168",
    "kind": "arxiv",
    "version": 1
  }
}