Pith Number

pith:PRHCQYZG

pith:2018:PRHCQYZGC5D5CNMHEMGWA5MB4K

not attested not anchored not stored refs pending

The Role of Spin(9) in Octonionic Geometry

Maurizio Parton, Paolo Piccinni

arxiv:1810.06288 v1 · 2018-10-15 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PRHCQYZGC5D5CNMHEMGWA5MB4K}

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	2026-05-18T00:03:20.910511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c4e2863261747d13587230d607581e28ee9ed2d28ad698fe24dc456f596c2f0

Aliases

arxiv: 1810.06288 · arxiv_version: 1810.06288v1 · doi: 10.48550/arxiv.1810.06288 · pith_short_12: PRHCQYZGC5D5 · pith_short_16: PRHCQYZGC5D5CNMH · pith_short_8: PRHCQYZG

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/PRHCQYZGC5D5CNMHEMGWA5MB4K \
  | 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: 7c4e2863261747d13587230d607581e28ee9ed2d28ad698fe24dc456f596c2f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38c1a9c3ad5add35ccf9bd33a87f018eb497a9898af599819a4665ca05a3004e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-10-15T11:43:54Z",
    "title_canon_sha256": "e7b60977577cae1d5668f0c882bb6101eaa206dbc9e7f60b1b47fcdce8eaa2d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.06288",
    "kind": "arxiv",
    "version": 1
  }
}