Pith Number

pith:FE5COIRB

pith:2010:FE5COIRBYJNACNPHRZ6HQ35EJX

not attested not anchored not stored refs pending

The twistor spinors of generic 2- and 3-distributions

Katja Sagerschnig, Matthias Hammerl

arxiv:1004.3632 v1 · 2010-04-21 · 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{FE5COIRBYJNACNPHRZ6HQ35EJX}

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	2026-05-18T04:23:22.228575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

293a272221c25a0135e78e7c786fa44ddc02d5842db1cc3018eda2e30cc78238

Aliases

arxiv: 1004.3632 · arxiv_version: 1004.3632v1 · doi: 10.48550/arxiv.1004.3632 · pith_short_12: FE5COIRBYJNA · pith_short_16: FE5COIRBYJNACNPH · pith_short_8: FE5COIRB

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/FE5COIRBYJNACNPHRZ6HQ35EJX \
  | 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: 293a272221c25a0135e78e7c786fa44ddc02d5842db1cc3018eda2e30cc78238

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a51b78e0e29b8f4537a4496c53bffa0a1bc8bc85b51550c038a756bd5d67be3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2010-04-21T06:40:27Z",
    "title_canon_sha256": "4b16a0b27bc7dc4827a8208ec27c4f7e7e2934ba9a52ef9757d2bba6e8c49446"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.3632",
    "kind": "arxiv",
    "version": 1
  }
}