Pith Number

pith:AWYRVDCO

pith:2026:AWYRVDCOJSLV3V24JTW2SRRGGT

not attested not anchored not stored refs pending

Kernel approximation beyond the native space -- with applications to approximation on manifolds

Christian Rieger, Grady B. Wright, Thomas Hangelbroek

arxiv:2606.28564 v1 · 2026-06-26 · math.CA · cs.NA · 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{AWYRVDCOJSLV3V24JTW2SRRGGT}

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	2026-06-30T00:15:18.964330Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05b11a8c4e4c975dd75c4ceda9462634fb1fbf1e1c4b21bfe27575c41ebcc595

Aliases

arxiv: 2606.28564 · arxiv_version: 2606.28564v1 · doi: 10.48550/arxiv.2606.28564 · pith_short_12: AWYRVDCOJSLV · pith_short_16: AWYRVDCOJSLV3V24 · pith_short_8: AWYRVDCO

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/AWYRVDCOJSLV3V24JTW2SRRGGT \
  | 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: 05b11a8c4e4c975dd75c4ceda9462634fb1fbf1e1c4b21bfe27575c41ebcc595

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4f18988c218ed02c66d3092791b8fb8a6153ad38aea591ff68584c83355b0bf",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2026-06-26T19:42:20Z",
    "title_canon_sha256": "732aef992673b74b8a77ae813be3b07c73fb812a24fffb486ef82921af73bc81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.28564",
    "kind": "arxiv",
    "version": 1
  }
}