Pith Number

pith:SMJCK5F5

pith:2011:SMJCK5F5TBEA3KNLV7DWOGWL3M

not attested not anchored not stored refs pending

Characteristics of Invariant Weights Related to Code Equivalence over Rings

Cathy Mc Fadden, Jens Zumbr\"agel, Marcus Greferath

arxiv:1110.1538 v1 · 2011-10-07 · math.RA · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SMJCK5F5TBEA3KNLV7DWOGWL3M}

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	2026-05-18T04:11:29.815100Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93122574bd98480da9abafc7671acbdb3f800ec2eaff67c37f2389cd92365b85

Aliases

arxiv: 1110.1538 · arxiv_version: 1110.1538v1 · doi: 10.48550/arxiv.1110.1538 · pith_short_12: SMJCK5F5TBEA · pith_short_16: SMJCK5F5TBEA3KNL · pith_short_8: SMJCK5F5

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/SMJCK5F5TBEA3KNLV7DWOGWL3M \
  | 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: 93122574bd98480da9abafc7671acbdb3f800ec2eaff67c37f2389cd92365b85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7073352757455fab0fa663b0a7f4147d06c29bb1fc8fb8c50c344abacba9b3eb",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2011-10-07T14:17:00Z",
    "title_canon_sha256": "aeb011fc7324245ae92811153fd1634608876dee3c15faa56a7df54a6f2bd165"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.1538",
    "kind": "arxiv",
    "version": 1
  }
}