Pith Number

pith:U6YIO46J

pith:2012:U6YIO46JZO2BFW6ONYDKGCSADY

not attested not anchored not stored refs pending

Kahler-Einstein metrics on Fano manifolds, II: limits with cone angle less than 2 \pi

Simon Donaldson, Song Sun, Xiuxiong Chen

arxiv:1212.4714 v1 · 2012-12-19 · math.DG · math-ph · math.AG · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U6YIO46JZO2BFW6ONYDKGCSADY}

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	2026-05-18T03:38:11.717301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7b08773c9cbb412dbce6e06a30a401e1db7d464083fd3e6b7cf0e0d2a919b11

Aliases

arxiv: 1212.4714 · arxiv_version: 1212.4714v1 · doi: 10.48550/arxiv.1212.4714 · pith_short_12: U6YIO46JZO2B · pith_short_16: U6YIO46JZO2BFW6O · pith_short_8: U6YIO46J

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/U6YIO46JZO2BFW6ONYDKGCSADY \
  | 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: a7b08773c9cbb412dbce6e06a30a401e1db7d464083fd3e6b7cf0e0d2a919b11

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df130d1711f8a7137d7a8aeb0724f401eeae67fcd84381c79da5a810147f6884",
    "cross_cats_sorted": [
      "math-ph",
      "math.AG",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-12-19T15:56:55Z",
    "title_canon_sha256": "33169be09bdae2be5a3b855d9d175f512c1a1c3e4fbc2bad18dc471fb1c38228"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.4714",
    "kind": "arxiv",
    "version": 1
  }
}