Pith Number

pith:Q7QIEZPW

pith:2007:Q7QIEZPWFJXMZVEMPMSJO4TPRY

not attested not anchored not stored refs pending

Characteristic forms of complex Cartan geometries

Benjamin McKay (University College Cork)

arxiv:0704.2555 v2 · 2007-04-19 · math.DG · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q7QIEZPWFJXMZVEMPMSJO4TPRY}

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	2026-07-05T00:18:02.521580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87e08265f62a6eccd48c7b2497726f8e2f25b6e988b9a0768650376d34990f0c

Aliases

arxiv: 0704.2555 · arxiv_version: 0704.2555v2 · doi: 10.48550/arxiv.0704.2555 · pith_short_12: Q7QIEZPWFJXM · pith_short_16: Q7QIEZPWFJXMZVEM · pith_short_8: Q7QIEZPW

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/Q7QIEZPWFJXMZVEMPMSJO4TPRY \
  | 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: 87e08265f62a6eccd48c7b2497726f8e2f25b6e988b9a0768650376d34990f0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d34a853ede5e2e996d9c89d99679176b58534a88363a1db591af1151d533f41",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2007-04-19T15:11:58Z",
    "title_canon_sha256": "e115cf2492eacc7ee262e62d72db7b9869ec52a96af381fe70d9993c30857202"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.2555",
    "kind": "arxiv",
    "version": 2
  }
}