Pith Number

pith:Z7SS44AM

pith:2015:Z7SS44AMZN2VJ45AVW22TJCGUV

not attested not anchored not stored refs pending

Eventually index of reducibility on sequentially Cohen-Macaulay modules

Hoang Le Truong

arxiv:1504.06041 v1 · 2015-04-23 · 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{Z7SS44AMZN2VJ45AVW22TJCGUV}

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	2026-05-18T02:18:02.774850Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfe52e700ccb7554f3a0adb5a9a446a5571b182506cd189e6c6d74772f310445

Aliases

arxiv: 1504.06041 · arxiv_version: 1504.06041v1 · doi: 10.48550/arxiv.1504.06041 · pith_short_12: Z7SS44AMZN2V · pith_short_16: Z7SS44AMZN2VJ45A · pith_short_8: Z7SS44AM

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/Z7SS44AMZN2VJ45AVW22TJCGUV \
  | 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: cfe52e700ccb7554f3a0adb5a9a446a5571b182506cd189e6c6d74772f310445

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00ff896faeab0643a2b83617c799f72334a74b78ee46d0198afd7ac36125b4cc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2015-04-23T04:44:19Z",
    "title_canon_sha256": "7aa1701dd57ad19121fc387d4ec540a6e3bbc1438bbefc15a3833d8c49ad448a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06041",
    "kind": "arxiv",
    "version": 1
  }
}