Pith Number

pith:NJVJFQAN

pith:2013:NJVJFQANSKYIMTOCHDWB67C4KO

not attested not anchored not stored refs pending

Alpha invariants and K-stability for general polarisations of Fano varieties

Ruadha\'i Dervan

arxiv:1307.6527 v3 · 2013-07-24 · math.AG · 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{NJVJFQANSKYIMTOCHDWB67C4KO}

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	2026-05-18T01:16:35.288541Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a6a92c00d92b0864dc238ec1f7c5c538bca8339e9c3b2ec087d3bc36bff99a9

Aliases

arxiv: 1307.6527 · arxiv_version: 1307.6527v3 · doi: 10.48550/arxiv.1307.6527 · pith_short_12: NJVJFQANSKYI · pith_short_16: NJVJFQANSKYIMTOC · pith_short_8: NJVJFQAN

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/NJVJFQANSKYIMTOCHDWB67C4KO \
  | 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: 6a6a92c00d92b0864dc238ec1f7c5c538bca8339e9c3b2ec087d3bc36bff99a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc380e59b341fec5d2a92fdce24b3e134f3f49c30631dde8ce32d2b32eb79cd7",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-07-24T18:43:25Z",
    "title_canon_sha256": "32b246a9a58fdb4571f67ef1923852db4a9054ec3b475f9af618627bcad41819"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.6527",
    "kind": "arxiv",
    "version": 3
  }
}