Pith Number

pith:UJ72GUFH

pith:2018:UJ72GUFHEB7Q4KV7S6ODXOOCNG

not attested not anchored not stored refs pending

A Fourier continuation framework for high-order approximations

Akash Anand

arxiv:1807.05552 v3 · 2018-07-15 · 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{UJ72GUFHEB7Q4KV7S6ODXOOCNG}

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	2026-05-18T00:10:09.764687Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a27fa350a7207f0e2abf979c3bb9c269a081160e2c1b325c020d308eac3021a8

Aliases

arxiv: 1807.05552 · arxiv_version: 1807.05552v3 · doi: 10.48550/arxiv.1807.05552 · pith_short_12: UJ72GUFHEB7Q · pith_short_16: UJ72GUFHEB7Q4KV7 · pith_short_8: UJ72GUFH

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/UJ72GUFHEB7Q4KV7S6ODXOOCNG \
  | 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: a27fa350a7207f0e2abf979c3bb9c269a081160e2c1b325c020d308eac3021a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "060e264e626e4d513ced022452ef1bb034deabd912cfff27ecb16ceda14f35e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-07-15T14:02:04Z",
    "title_canon_sha256": "6f27e2f511904813ac68e9d3e5a5e8ad5136a959b48fe48275ca975b95e4d3de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.05552",
    "kind": "arxiv",
    "version": 3
  }
}