Pith Number

pith:FK54DKVB

pith:2012:FK54DKVBVEABES6PTDLTH4ESRO

not attested not anchored not stored refs pending

Filter regular sequences and generalized local cohomology modules

Abolfazl Tehranian, Ali Fathi, Hossein Zakeri

arxiv:1207.1296 v2 · 2012-07-05 · 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{FK54DKVBVEABES6PTDLTH4ESRO}

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	2026-05-18T03:45:52.843350Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2abbc1aaa1a900124bcf98d733f0928bb131f6f424dca2440087dabaf8f0c19f

Aliases

arxiv: 1207.1296 · arxiv_version: 1207.1296v2 · doi: 10.48550/arxiv.1207.1296 · pith_short_12: FK54DKVBVEAB · pith_short_16: FK54DKVBVEABES6P · pith_short_8: FK54DKVB

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/FK54DKVBVEABES6PTDLTH4ESRO \
  | 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: 2abbc1aaa1a900124bcf98d733f0928bb131f6f424dca2440087dabaf8f0c19f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "172aa4d7229b6f35827ddd06257c1e219e3d7c996037aa5dfdde48819cc59a32",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2012-07-05T16:49:28Z",
    "title_canon_sha256": "a5be6fd416b745edc9b99bee3e44e97d5de3d482352461066da97427622b26e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1296",
    "kind": "arxiv",
    "version": 2
  }
}