Pith Number

pith:OH44KBYV

pith:2025:OH44KBYVJ5MNVN7B2FKF7EEVKA

not attested not anchored not stored refs pending

Applications of AAA rational approximation

Lloyd N. Trefethen, Yuji Nakatsukasa

arxiv:2510.16237 v1 · 2025-10-17 · 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{OH44KBYVJ5MNVN7B2FKF7EEVKA}

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.

Cited by

1 paper in Pith

Computational homogenization of unsteady flows in a periodic porous medium

Receipt and verification

First computed	2026-06-24T14:15:52.518438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71f9c507154f58dab7e1d1545f909550190bdbf64c81adf054478867af8dc3ea

Aliases

arxiv: 2510.16237 · arxiv_version: 2510.16237v1 · doi: 10.48550/arxiv.2510.16237 · pith_short_12: OH44KBYVJ5MN · pith_short_16: OH44KBYVJ5MNVN7B · pith_short_8: OH44KBYV

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/OH44KBYVJ5MNVN7B2FKF7EEVKA \
  | 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: 71f9c507154f58dab7e1d1545f909550190bdbf64c81adf054478867af8dc3ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb2f32938ec2395c327b9a562ff8cae2ce021ce51470f8ff6511a31c0998b0ae",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-10-17T22:00:37Z",
    "title_canon_sha256": "46302fb5a695c6eb191278bcfcf698d570734a663ea5c0a2d70f52966ad231e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2510.16237",
    "kind": "arxiv",
    "version": 1
  }
}