Pith Number

pith:EWTQSYEV

pith:2017:EWTQSYEVSQZS7MCMKJ4DWFN5OJ

not attested not anchored not stored refs pending

Koszul complex over skew polynomial rings

Alberto F. Boix, Josep \`Alvarez Montaner, Santiago Zarzuela

arxiv:1712.07836 v1 · 2017-12-21 · math.AC · math.AG · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EWTQSYEVSQZS7MCMKJ4DWFN5OJ}

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	2026-05-18T00:27:29.639061Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25a709609594332fb04c52783b15bd724787c7541ce21cb314437ef9f4097e96

Aliases

arxiv: 1712.07836 · arxiv_version: 1712.07836v1 · doi: 10.48550/arxiv.1712.07836 · pith_short_12: EWTQSYEVSQZS · pith_short_16: EWTQSYEVSQZS7MCM · pith_short_8: EWTQSYEV

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/EWTQSYEVSQZS7MCMKJ4DWFN5OJ \
  | 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: 25a709609594332fb04c52783b15bd724787c7541ce21cb314437ef9f4097e96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72576441e59837551ce88e852288dad8cdf5f7e7b326347ab889312c6ccf2415",
    "cross_cats_sorted": [
      "math.AG",
      "math.RA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2017-12-21T08:45:54Z",
    "title_canon_sha256": "bb178286ea8cf0494fd0982aaf03a4d8aa4cf18421d35341b252f8fe0c9c25a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.07836",
    "kind": "arxiv",
    "version": 1
  }
}