Pith Number

pith:FE5H47MB

pith:2017:FE5H47MBJ6V6PFAV4NWKWMRPBH

not attested not anchored not stored refs pending

Extended superalgebras from twistor and Killing spinors

\"Umit Ertem

arxiv:1709.02762 v1 · 2017-09-08 · math.DG · hep-th · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FE5H47MBJ6V6PFAV4NWKWMRPBH}

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	2026-05-18T00:35:44.785383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

293a7e7d814fabe79415e36cab322f09d097059d90ab1dc7239e34a6364c28a7

Aliases

arxiv: 1709.02762 · arxiv_version: 1709.02762v1 · doi: 10.48550/arxiv.1709.02762 · pith_short_12: FE5H47MBJ6V6 · pith_short_16: FE5H47MBJ6V6PFAV · pith_short_8: FE5H47MB

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/FE5H47MBJ6V6PFAV4NWKWMRPBH \
  | 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: 293a7e7d814fabe79415e36cab322f09d097059d90ab1dc7239e34a6364c28a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3439ad929888243fc87316f4d85bd187e79f55532ec01bdf96b56c9107735ce9",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-09-08T16:15:32Z",
    "title_canon_sha256": "6c1eaa8a8f85937dd1a6d27a1c22b4d8aca9ee13c5af8215ef81b8465fa79ea2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02762",
    "kind": "arxiv",
    "version": 1
  }
}