Pith Number

pith:SSAWQ5ZY

pith:2013:SSAWQ5ZYVSMMUZ7BI6X2ORH5IX

not attested not anchored not stored refs pending

On the Leray-Schauder degree of the Toda system on compact surfaces

Andrea Malchiodi, David Ruiz

arxiv:1311.7375 v1 · 2013-11-28 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SSAWQ5ZYVSMMUZ7BI6X2ORH5IX}

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	2026-05-18T03:05:56.501960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9481687738ac98ca67e147afa744fd45d43dde03d688b00dd2ccac93da9cc840

Aliases

arxiv: 1311.7375 · arxiv_version: 1311.7375v1 · doi: 10.48550/arxiv.1311.7375 · pith_short_12: SSAWQ5ZYVSMM · pith_short_16: SSAWQ5ZYVSMMUZ7B · pith_short_8: SSAWQ5ZY

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/SSAWQ5ZYVSMMUZ7BI6X2ORH5IX \
  | 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: 9481687738ac98ca67e147afa744fd45d43dde03d688b00dd2ccac93da9cc840

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad314da30236d752d8e44c0e6f023d779c1a91ef00d54508177a696f8437e4b1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-11-28T17:12:32Z",
    "title_canon_sha256": "2a435e404156c563578b6eade19da5620cdf360759a25125d8826f49d1c04bd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.7375",
    "kind": "arxiv",
    "version": 1
  }
}