Pith Number

pith:FFWDBNM6

pith:2017:FFWDBNM6UGG55PYX52I5B56FHB

not attested not anchored not stored refs pending

Using p-Refinement to Increase Boundary Derivative Convergence Rates

David Wells, Jeffrey Banks

arxiv:1711.05922 v3 · 2017-11-16 · 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{FFWDBNM6UGG55PYX52I5B56FHB}

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	2026-05-18T00:21:40.613271Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

296c30b59ea18ddebf17ee91d0f7c5384a4689c5bda59eec062aafb50b367540

Aliases

arxiv: 1711.05922 · arxiv_version: 1711.05922v3 · doi: 10.48550/arxiv.1711.05922 · pith_short_12: FFWDBNM6UGG5 · pith_short_16: FFWDBNM6UGG55PYX · pith_short_8: FFWDBNM6

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/FFWDBNM6UGG55PYX52I5B56FHB \
  | 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: 296c30b59ea18ddebf17ee91d0f7c5384a4689c5bda59eec062aafb50b367540

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f9d1a7d6e3a07bca74e5a75b20b72b1032dd2b6ba11cbfb5ee4f2f0c86c6100",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-11-16T04:31:27Z",
    "title_canon_sha256": "82f53b1c4855f669097457ad491fd7581a0edce426fbcc68d9978113d0329cbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.05922",
    "kind": "arxiv",
    "version": 3
  }
}