Pith Number

pith:KXEGGVPR

pith:2015:KXEGGVPRI4I34UZSBL53OYTGQX

not attested not anchored not stored refs pending

Exotic Elliptic Algebras of dimension 4 (with an Appendix by Derek Tomlin)

Alex Chirvasitu, S. Paul Smith

arxiv:1509.01634 v2 · 2015-09-04 · math.QA · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KXEGGVPRI4I34UZSBL53OYTGQX}

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	2026-05-18T01:04:05.844714Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55c86355f14711be53320afbb7626685c6bef92c101edbf3500811c9ea635e13

Aliases

arxiv: 1509.01634 · arxiv_version: 1509.01634v2 · doi: 10.48550/arxiv.1509.01634 · pith_short_12: KXEGGVPRI4I3 · pith_short_16: KXEGGVPRI4I34UZS · pith_short_8: KXEGGVPR

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/KXEGGVPRI4I34UZSBL53OYTGQX \
  | 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: 55c86355f14711be53320afbb7626685c6bef92c101edbf3500811c9ea635e13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3acc540e783cf00fe892d7960667f8caab5e95597636fd8c4489c635c070a67e",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2015-09-04T23:20:45Z",
    "title_canon_sha256": "6d070e698c41c4f8ba75c1f7723bf64c4f377b4789b23415eadfe066bbfb8296"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.01634",
    "kind": "arxiv",
    "version": 2
  }
}