Pith Number

pith:Q24MIAVD

pith:2014:Q24MIAVDUDXWO5TYHVFBKVCD5T

not attested not anchored not stored refs pending

The Penrose transform in quaternionic geometry

Radu Pantilie

arxiv:1411.2226 v2 · 2014-11-09 · 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{Q24MIAVDUDXWO5TYHVFBKVCD5T}

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	2026-05-18T02:20:28.524519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86b8c402a3a0ef6776783d4a155443ecc0fb94831fcb3c6bc8d6717bf2a0392b

Aliases

arxiv: 1411.2226 · arxiv_version: 1411.2226v2 · doi: 10.48550/arxiv.1411.2226 · pith_short_12: Q24MIAVDUDXW · pith_short_16: Q24MIAVDUDXWO5TY · pith_short_8: Q24MIAVD

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/Q24MIAVDUDXWO5TYHVFBKVCD5T \
  | 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: 86b8c402a3a0ef6776783d4a155443ecc0fb94831fcb3c6bc8d6717bf2a0392b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a0282b3a147bc77ed7e4c741ee10ea75f0753e9a4aa85838c6fae015de8c4c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-11-09T12:42:35Z",
    "title_canon_sha256": "6c2bd7b32d182ebd1cdb2b3112273d31a78d156c867ddda043406ed1dd298aeb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.2226",
    "kind": "arxiv",
    "version": 2
  }
}