Pith Number

pith:NNSWT5XF

pith:2016:NNSWT5XF7337I44NVSDGLKCX6N

not attested not anchored not stored refs pending

Parabolic NTA domains in $\mathbb R^2$

Max Engelstein

arxiv:1607.08650 v2 · 2016-07-28 · math.AP · math.CA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NNSWT5XF7337I44NVSDGLKCX6N}

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	2026-05-18T00:35:05.303117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b6569f6e5fef7f4738dac8665a857f3780bd87bdd5e6e82d9f48f02beb636c3

Aliases

arxiv: 1607.08650 · arxiv_version: 1607.08650v2 · doi: 10.48550/arxiv.1607.08650 · pith_short_12: NNSWT5XF7337 · pith_short_16: NNSWT5XF7337I44N · pith_short_8: NNSWT5XF

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/NNSWT5XF7337I44NVSDGLKCX6N \
  | 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: 6b6569f6e5fef7f4738dac8665a857f3780bd87bdd5e6e82d9f48f02beb636c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a11d7fb53e1b18a647b8e6151467635dd6829b8417e5cb587c75433cdbd40ebb",
    "cross_cats_sorted": [
      "math.CA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2016-07-28T22:01:59Z",
    "title_canon_sha256": "e5539049ad5db4ced43f2ec3472ec3f691caa8a132eb6236e6f36353df163ba5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.08650",
    "kind": "arxiv",
    "version": 2
  }
}