Pith Number

pith:XEEFYO7X

pith:2007:XEEFYO7XST7IROGRZPGHV5RGPM

not attested not anchored not stored refs pending

Differential Invariants of SL(2) and SL(3)-ACTIONS on R^2

Mehdi Nadjafikhah, Seyed-Reza Hejazi

arxiv:0711.0511 v2 · 2007-11-04 · 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{XEEFYO7XST7IROGRZPGHV5RGPM}

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	2026-05-18T04:00:27.263048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9085c3bf794fe88b8d1cbcc7af6267b12f5a44e4eec1e6ef5f1f300166b71ee

Aliases

arxiv: 0711.0511 · arxiv_version: 0711.0511v2 · doi: 10.48550/arxiv.0711.0511 · pith_short_12: XEEFYO7XST7I · pith_short_16: XEEFYO7XST7IROGR · pith_short_8: XEEFYO7X

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/XEEFYO7XST7IROGRZPGHV5RGPM \
  | 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: b9085c3bf794fe88b8d1cbcc7af6267b12f5a44e4eec1e6ef5f1f300166b71ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f69a29b95c382b84f30bc794d874f947070ac22cc7d28f9c88c520eb6c30b488",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2007-11-04T11:16:18Z",
    "title_canon_sha256": "65c85f7bc9892425f407a8759f884e19b6b1a48c0a2b923334aab81f1b154c3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.0511",
    "kind": "arxiv",
    "version": 2
  }
}