Pith Number

pith:S4EPVESL

pith:2016:S4EPVESL4BQPJ2HABAH27FOAGI

not attested not anchored not stored refs pending

On Fujita invariants of subvarieties of a uniruled variety

Chen Jiang, Christopher D. Hacon

arxiv:1604.01867 v2 · 2016-04-07 · 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{S4EPVESL4BQPJ2HABAH27FOAGI}

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	2026-05-18T00:29:46.979345Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9708fa924be060f4e8e0080faf95c03205b5413ab4b77e34e4b6fa902e23a27f

Aliases

arxiv: 1604.01867 · arxiv_version: 1604.01867v2 · doi: 10.48550/arxiv.1604.01867 · pith_short_12: S4EPVESL4BQP · pith_short_16: S4EPVESL4BQPJ2HA · pith_short_8: S4EPVESL

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/S4EPVESL4BQPJ2HABAH27FOAGI \
  | 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: 9708fa924be060f4e8e0080faf95c03205b5413ab4b77e34e4b6fa902e23a27f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e08a34c0e85ddc19941c2fdfc349bbb50536db2a1dbbe1c44683edeeedea2bde",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-04-07T03:57:48Z",
    "title_canon_sha256": "cedbbb92dbad98f192c4e01eaaf63754beb825d43755aeea6042d6252a80eed5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.01867",
    "kind": "arxiv",
    "version": 2
  }
}