Pith Number

pith:XTQ2ZYKM

pith:2007:XTQ2ZYKMTAGFNURYKVWNDM7IH5

not attested not anchored not stored refs pending

Homogeneous Cartan Geometries

Matthias Hammerl

arxiv:math/0703627 v3 · 2007-03-21 · 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{XTQ2ZYKMTAGFNURYKVWNDM7IH5}

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	2026-05-18T04:21:12.574773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bce1ace14c980c56d238556cd1b3e83f5e9f47c0341c8f2315d3f3ad9d551da8

Aliases

arxiv: math/0703627 · arxiv_version: math/0703627v3 · doi: 10.48550/arxiv.math/0703627 · pith_short_12: XTQ2ZYKMTAGF · pith_short_16: XTQ2ZYKMTAGFNURY · pith_short_8: XTQ2ZYKM

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/XTQ2ZYKMTAGFNURYKVWNDM7IH5 \
  | 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: bce1ace14c980c56d238556cd1b3e83f5e9f47c0341c8f2315d3f3ad9d551da8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28f55d0705ec9fcb233cb21a3c602d434f621274fe6e6e700f3a1b74de5a13a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2007-03-21T14:37:32Z",
    "title_canon_sha256": "1a94ddc62d8c26cfc285693b61d63e6be6622c9da869857e7f7e777f66b52917"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0703627",
    "kind": "arxiv",
    "version": 3
  }
}