Pith Number

pith:QDIPIGC2

pith:2017:QDIPIGC2XQUK3EQ6DGIYCY7FDK

not attested not anchored not stored refs pending

The octonions as a twisted group algebra

Tathagata Basak

arxiv:1702.05705 v1 · 2017-02-19 · 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{QDIPIGC2XQUK3EQ6DGIYCY7FDK}

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	2026-05-18T00:50:25.584886Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80d0f4185abc28ad921e19918163e51aa2effc7520edad7c76deb25d2982b217

Aliases

arxiv: 1702.05705 · arxiv_version: 1702.05705v1 · doi: 10.48550/arxiv.1702.05705 · pith_short_12: QDIPIGC2XQUK · pith_short_16: QDIPIGC2XQUK3EQ6 · pith_short_8: QDIPIGC2

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/QDIPIGC2XQUK3EQ6DGIYCY7FDK \
  | 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: 80d0f4185abc28ad921e19918163e51aa2effc7520edad7c76deb25d2982b217

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "399b00efb85bd07a52b2a9e1386dbfcff48dedf8fa8c1d07aad714a503f0f036",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2017-02-19T06:27:23Z",
    "title_canon_sha256": "77871a89b35712b4119a7aa614eeeec07b9841a771db8fac2476269aa850b0ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.05705",
    "kind": "arxiv",
    "version": 1
  }
}