Pith Number

pith:RTJ5Y6I6

pith:2017:RTJ5Y6I6TJHJ6RIBZCF2HMESHX

not attested not anchored not stored refs pending

A fully discretised filtered polynomial approximation on spherical shells

Yoshihito Kazashi

arxiv:1701.07620 v2 · 2017-01-26 · math.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{RTJ5Y6I6TJHJ6RIBZCF2HMESHX}

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	2026-05-18T00:27:21.811454Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8cd3dc791e9a4e9f4501c88ba3b0923df37062e80cf41cbc776feba64ec434c1

Aliases

arxiv: 1701.07620 · arxiv_version: 1701.07620v2 · doi: 10.48550/arxiv.1701.07620 · pith_short_12: RTJ5Y6I6TJHJ · pith_short_16: RTJ5Y6I6TJHJ6RIB · pith_short_8: RTJ5Y6I6

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/RTJ5Y6I6TJHJ6RIBZCF2HMESHX \
  | 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: 8cd3dc791e9a4e9f4501c88ba3b0923df37062e80cf41cbc776feba64ec434c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05bdf1fae148b9c241dddc4a32fabc55e5464c221a7cea0821097d06f8e37c03",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-01-26T09:08:24Z",
    "title_canon_sha256": "cdce68a0a591f417a6f7b63b05d63589e1e3c74dcf6f2a263cd08e9b324ef40f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.07620",
    "kind": "arxiv",
    "version": 2
  }
}