Pith Number

pith:M2F27757

pith:2018:M2F27757NN6QQ5R5Q23K2NHQ5O

not attested not anchored not stored refs pending

On the classification of rational four-dimensional unital division algebras

Gustav Hammarhjelm

arxiv:1802.08507 v1 · 2018-02-23 · math.RA

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M2F27757NN6QQ5R5Q23K2NHQ5O}

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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.

Cited by

1 paper in Pith

On Four-Dimensional Unital Division Algebras over Fields of Characteristic not 2

Receipt and verification

First computed	2026-05-18T00:22:41.396489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

668bafffbf6b7d08763d86b6ad34f0ebb353bfbcb230fd8b4008d8a3595f360c

Aliases

arxiv: 1802.08507 · arxiv_version: 1802.08507v1 · doi: 10.48550/arxiv.1802.08507 · pith_short_12: M2F27757NN6Q · pith_short_16: M2F27757NN6QQ5R5 · pith_short_8: M2F27757

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/M2F27757NN6QQ5R5Q23K2NHQ5O \
  | 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: 668bafffbf6b7d08763d86b6ad34f0ebb353bfbcb230fd8b4008d8a3595f360c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2103080a580b562d4e7d14ced13ab001c427ac2f03c4805c12eaf733e8a2954b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2018-02-23T12:53:32Z",
    "title_canon_sha256": "3e7207877648e79012a10e88836c2bdb0bdbbd0a5e51c74e890dd922ae8340a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.08507",
    "kind": "arxiv",
    "version": 1
  }
}