Pith Number

pith:XTLI4XG4

pith:2013:XTLI4XG4CQCMB5YVIS6L5BISTE

not attested not anchored not stored refs pending

Unobstructedness of deformations of weak Fano manifolds

Taro Sano

arxiv:1302.0705 v2 · 2013-02-04 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XTLI4XG4CQCMB5YVIS6L5BISTE}

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	2026-05-18T03:25:14.289147Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcd68e5cdc1404c0f71544bcbe851299220ea9eaf572bb93408dd9be115a843d

Aliases

arxiv: 1302.0705 · arxiv_version: 1302.0705v2 · doi: 10.48550/arxiv.1302.0705 · pith_short_12: XTLI4XG4CQCM · pith_short_16: XTLI4XG4CQCMB5YV · pith_short_8: XTLI4XG4

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/XTLI4XG4CQCMB5YVIS6L5BISTE \
  | 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: bcd68e5cdc1404c0f71544bcbe851299220ea9eaf572bb93408dd9be115a843d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9db5eb3b34bfefbd95425f7edf0c25e60cce8215607c014f7f5098ce88fea222",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-02-04T14:35:54Z",
    "title_canon_sha256": "85e1164c639f1fff862b4b694676aa709c21cfe04e4d3ef3a3f50de51c258eee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.0705",
    "kind": "arxiv",
    "version": 2
  }
}