Pith Number

pith:5IBMY23V

pith:2019:5IBMY23VQODKLCUHJJCZPH3YDF

not attested not anchored not stored refs pending

Matching numbers and the regularity of the Rees algebra of an edge ideal

J\"urgen Herzog, Takayuki Hibi

arxiv:1905.02141 v1 · 2019-05-06 · 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{5IBMY23VQODKLCUHJJCZPH3YDF}

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	2026-05-17T23:46:56.264847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea02cc6b758386a58a874a45979f78196cb7dadb22e1ea7dbb072a226d80636d

Aliases

arxiv: 1905.02141 · arxiv_version: 1905.02141v1 · doi: 10.48550/arxiv.1905.02141 · pith_short_12: 5IBMY23VQODK · pith_short_16: 5IBMY23VQODKLCUH · pith_short_8: 5IBMY23V

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/5IBMY23VQODKLCUHJJCZPH3YDF \
  | 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: ea02cc6b758386a58a874a45979f78196cb7dadb22e1ea7dbb072a226d80636d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8e74ede174cd0926584335800039ed35e1e3f678e9e0c3ff4e62995d9e985dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2019-05-06T16:51:07Z",
    "title_canon_sha256": "840a75ed85f7fb1eb9dc36e848642e0a760d48500d79ced4c1557c43b62694fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.02141",
    "kind": "arxiv",
    "version": 1
  }
}