Pith Number

pith:IXYDWK2L

pith:2019:IXYDWK2LSULMUU3LUT2Y7R4O5R

not attested not anchored not stored refs pending

Testing zero-dimensionality of varieties at a point

Katsusuke Nabeshima, Shinichi Tajima

arxiv:1903.12365 v1 · 2019-03-29 · cs.SC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IXYDWK2LSULMUU3LUT2Y7R4O5R}

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	2026-05-17T23:49:54.238786Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45f03b2b4b9516ca536ba4f58fc78eec6043b192c2bd6c860eaa65d0eb99de47

Aliases

arxiv: 1903.12365 · arxiv_version: 1903.12365v1 · doi: 10.48550/arxiv.1903.12365 · pith_short_12: IXYDWK2LSULM · pith_short_16: IXYDWK2LSULMUU3L · pith_short_8: IXYDWK2L

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/IXYDWK2LSULMUU3LUT2Y7R4O5R \
  | 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: 45f03b2b4b9516ca536ba4f58fc78eec6043b192c2bd6c860eaa65d0eb99de47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd61e89e8a37f3dac6f5783768c3ed4d1e88f64c6141c82115bc89ea6bec6cae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SC",
    "submitted_at": "2019-03-29T06:28:16Z",
    "title_canon_sha256": "8c32f5bfcb225a61117cf436738c8c29c3a40e3381ee818ae36a21884eb36b21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.12365",
    "kind": "arxiv",
    "version": 1
  }
}