Pith Number

pith:H67MJCE7

pith:2013:H67MJCE742E2CHH24VKPL2DQNZ

not attested not anchored not stored refs pending

Distractions of Shakin rings

Enrico Sbarra, Giulio Caviglia

arxiv:1308.4659 v1 · 2013-08-21 · 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{H67MJCE742E2CHH24VKPL2DQNZ}

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	2026-05-18T03:15:21.362417Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fbec4889fe689a11cfae554f5e8706e5fa1aa21d959540dfd53b7d6db2b9b3d

Aliases

arxiv: 1308.4659 · arxiv_version: 1308.4659v1 · doi: 10.48550/arxiv.1308.4659 · pith_short_12: H67MJCE742E2 · pith_short_16: H67MJCE742E2CHH2 · pith_short_8: H67MJCE7

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/H67MJCE742E2CHH24VKPL2DQNZ \
  | 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: 3fbec4889fe689a11cfae554f5e8706e5fa1aa21d959540dfd53b7d6db2b9b3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76429c9fb1f53602d45b9d169d2a0a8e88000542ef40587349f0d4ef38eea2f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2013-08-21T18:58:34Z",
    "title_canon_sha256": "793f315359511c23ec764f2805021bc8098c5deb8a700976caafbd049b652b98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.4659",
    "kind": "arxiv",
    "version": 1
  }
}