Pith Number

pith:U2LPTRDW

pith:2017:U2LPTRDWXE4DBRCHNITIZ7CJJT

not attested not anchored not stored refs pending

Contact real hypersurfaces in the complex hyperbolic quadric

Sebastian Klein, Young Jin Suh

arxiv:1710.10040 v2 · 2017-10-27 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U2LPTRDWXE4DBRCHNITIZ7CJJT}

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	2026-05-17T23:55:59.910518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a696f9c476b93830c4476a268cfc494ce316513998e458d334df7e9c103f08c1

Aliases

arxiv: 1710.10040 · arxiv_version: 1710.10040v2 · doi: 10.48550/arxiv.1710.10040 · pith_short_12: U2LPTRDWXE4D · pith_short_16: U2LPTRDWXE4DBRCH · pith_short_8: U2LPTRDW

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/U2LPTRDWXE4DBRCHNITIZ7CJJT \
  | 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: a696f9c476b93830c4476a268cfc494ce316513998e458d334df7e9c103f08c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c344bc4c3d9ccf3b6b79d76da76b8c2022839bfeb0283467fd5db19ac4b0cf9f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-10-27T09:28:34Z",
    "title_canon_sha256": "286db96e65cf1010863a3105b5b8e70aebc2fa4d937f03944d06a9520c74adc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.10040",
    "kind": "arxiv",
    "version": 2
  }
}