Pith Number

pith:XQ4AG2FX

pith:2011:XQ4AG2FXEJ63VW6M4DXEYXFULF

not attested not anchored not stored refs pending

Finiteness conditions of $S$-Cohn-Jordan Extensions

Jerzy Matczuk

arxiv:1110.1446 v1 · 2011-10-07 · 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{XQ4AG2FXEJ63VW6M4DXEYXFULF}

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	2026-05-18T04:11:30.077199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc380368b7227dbadbcce0ee4c5cb4595a2a64d3bdaa1f8df23bf94cd36421ea

Aliases

arxiv: 1110.1446 · arxiv_version: 1110.1446v1 · doi: 10.48550/arxiv.1110.1446 · pith_short_12: XQ4AG2FXEJ63 · pith_short_16: XQ4AG2FXEJ63VW6M · pith_short_8: XQ4AG2FX

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/XQ4AG2FXEJ63VW6M4DXEYXFULF \
  | 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: bc380368b7227dbadbcce0ee4c5cb4595a2a64d3bdaa1f8df23bf94cd36421ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3a8f2577f9b41cba71718a4c7565cc69042c480efd44fec34f612c04ea8eafc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2011-10-07T07:30:51Z",
    "title_canon_sha256": "58609ec46dc33bb1ca18e190b3b706a18a976e8b3adbaf9b6e498b818156de1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.1446",
    "kind": "arxiv",
    "version": 1
  }
}