Pith Number

pith:XEH2L4S4

pith:2003:XEH2L4S44V6Y2HATBWOG5H7UW7

not attested not anchored not stored refs pending

Inverse limits of rings and Multiplier rings

Francesc Perera, Gert K. Pedersen

arxiv:math/0307385 v1 · 2003-07-30 · 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{XEH2L4S44V6Y2HATBWOG5H7UW7}

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	2026-07-04T14:37:38.004830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b90fa5f25ce57d8d1c130d9c6e9ff4b7fcee3dbfcedfd5918de90fb621cc192c

Aliases

arxiv: math/0307385 · arxiv_version: math/0307385v1 · doi: 10.48550/arxiv.math/0307385 · pith_short_12: XEH2L4S44V6Y · pith_short_16: XEH2L4S44V6Y2HAT · pith_short_8: XEH2L4S4

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/XEH2L4S44V6Y2HATBWOG5H7UW7 \
  | 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: b90fa5f25ce57d8d1c130d9c6e9ff4b7fcee3dbfcedfd5918de90fb621cc192c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f268aebab8bee1aa2d60b5a37931483aa312b0471644abd3329d02e36efa4534",
    "cross_cats_sorted": [
      "math.OA"
    ],
    "license": "",
    "primary_cat": "math.RA",
    "submitted_at": "2003-07-30T14:39:03Z",
    "title_canon_sha256": "f813d3b673b2bf200402a39e9eb6adafb3290ece51f7ab2117366ce96f370eca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0307385",
    "kind": "arxiv",
    "version": 1
  }
}