Pith Number

pith:HFIMNHHW

pith:1999:HFIMNHHW4RWXWBYUKJYQQ3ILEN

not attested not anchored not stored refs pending

An infinite analogue of rings with stable rank one

Francesc Perera, Gert K. Pedersen, Pere Ara

arxiv:math/9910131 v2 · 1999-10-25 · math.RA · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HFIMNHHW4RWXWBYUKJYQQ3ILEN}

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	2026-07-04T14:41:21.116301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3950c69cf6e46d7b07145271086d0b2349dd56a8da1a82d896c85133cd6e17e2

Aliases

arxiv: math/9910131 · arxiv_version: math/9910131v2 · doi: 10.48550/arxiv.math/9910131 · pith_short_12: HFIMNHHW4RWX · pith_short_16: HFIMNHHW4RWXWBYU · pith_short_8: HFIMNHHW

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/HFIMNHHW4RWXWBYUKJYQQ3ILEN \
  | 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: 3950c69cf6e46d7b07145271086d0b2349dd56a8da1a82d896c85133cd6e17e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c963d62e44ae73ac5c7952add8e903dbe89311e94afadbe8b342413383bd1223",
    "cross_cats_sorted": [
      "math.OA"
    ],
    "license": "",
    "primary_cat": "math.RA",
    "submitted_at": "1999-10-25T15:49:33Z",
    "title_canon_sha256": "0b77d3a509f327e1ac3f2dadabadfba80e64432ec558dc07c5c735d2b2ac1a80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9910131",
    "kind": "arxiv",
    "version": 2
  }
}