Pith Number

pith:FFHCXC5F

pith:2013:FFHCXC5FQIN3DE5BKUCKFXROTY

not attested not anchored not stored refs pending

Quaternion quadratic equations in characteristic 2

Adam Chapman

arxiv:1310.1858 v4 · 2013-10-07 · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FFHCXC5FQIN3DE5BKUCKFXROTY}

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	2026-05-18T02:51:24.090140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

294e2b8ba5821bb193a15504a2de2e9e3c0be8bf7f08733176b41545229b1a9e

Aliases

arxiv: 1310.1858 · arxiv_version: 1310.1858v4 · doi: 10.48550/arxiv.1310.1858 · pith_short_12: FFHCXC5FQIN3 · pith_short_16: FFHCXC5FQIN3DE5B · pith_short_8: FFHCXC5F

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/FFHCXC5FQIN3DE5BKUCKFXROTY \
  | 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: 294e2b8ba5821bb193a15504a2de2e9e3c0be8bf7f08733176b41545229b1a9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b8cc396aeca436840bbfba2e72abf12312d635accaf797b50013640184a1a42",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2013-10-07T16:58:19Z",
    "title_canon_sha256": "2357cb4e234a8b41d5c6bbde95bdf3b1b617a5512b636743459737ff2efee4c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.1858",
    "kind": "arxiv",
    "version": 4
  }
}