Pith Number

pith:YQLIQQSQ

pith:2019:YQLIQQSQTF7PXN2IL4U3P7KJ5Q

not attested not anchored not stored refs pending

Ulrich ideals and 2-AGL rings

Naoki Taniguchi, Ryotaro Isobe, Shiro Goto

arxiv:1902.05335 v1 · 2019-02-14 · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YQLIQQSQTF7PXN2IL4U3P7KJ5Q}

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	2026-05-17T23:54:01.166859Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c416884250997efbb7485f29b7fd49ec095a87875f751898020d5c42b651b629

Aliases

arxiv: 1902.05335 · arxiv_version: 1902.05335v1 · doi: 10.48550/arxiv.1902.05335 · pith_short_12: YQLIQQSQTF7P · pith_short_16: YQLIQQSQTF7PXN2I · pith_short_8: YQLIQQSQ

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/YQLIQQSQTF7PXN2IL4U3P7KJ5Q \
  | 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: c416884250997efbb7485f29b7fd49ec095a87875f751898020d5c42b651b629

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d4a224e19b77d1ad376da7b1aa1abea93173e3fc2d828c7de4d01431490b1a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2019-02-14T13:00:54Z",
    "title_canon_sha256": "a6586e1f4a11280bb7368d123ea867da98bf8fe51f908d57510e0429eded33d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05335",
    "kind": "arxiv",
    "version": 1
  }
}