Pith Number

pith:JAWP6OBG

pith:2015:JAWP6OBGHN25OF3ZMLEYOPBJLJ

not attested not anchored not stored refs pending

Extension of Chebfun to periodic functions

Grady B. Wright, Hadrien Montanelli, Lloyd N. Trefethen, Mohsin Javed

arxiv:1511.00166 v1 · 2015-10-31 · 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{JAWP6OBGHN25OF3ZMLEYOPBJLJ}

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	2026-05-18T01:28:13.078606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

482cff38263b75d7177962c9873c295a48c58fc8b41e269d87760a5fd2ce07d1

Aliases

arxiv: 1511.00166 · arxiv_version: 1511.00166v1 · doi: 10.48550/arxiv.1511.00166 · pith_short_12: JAWP6OBGHN25 · pith_short_16: JAWP6OBGHN25OF3Z · pith_short_8: JAWP6OBG

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/JAWP6OBGHN25OF3ZMLEYOPBJLJ \
  | 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: 482cff38263b75d7177962c9873c295a48c58fc8b41e269d87760a5fd2ce07d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e819fb3dd8ef315910e591447fa45b0375879818b8ecebdfe412e6b0e58f67e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-10-31T20:21:36Z",
    "title_canon_sha256": "a29662aa0b2f4e13416353ac4a24f907ea24bdf45afafba19aa65424e6c39fc8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.00166",
    "kind": "arxiv",
    "version": 1
  }
}