Pith Number

pith:T7ZSOVJY

pith:2018:T7ZSOVJYM7VSNLO5ZBVG7EGTLJ

not attested not anchored not stored refs pending

On topological invariants of algebraic threefolds with ($\mathbb Q$-factorial) singularities

Antonella Grassi, Timo Weigand, with an Appendix by V. Srinivas

arxiv:1804.02424 v1 · 2018-04-06 · math.AG · hep-th · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T7ZSOVJYM7VSNLO5ZBVG7EGTLJ}

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.

Cited by

1 paper in Pith

Explicit Bounds on the Spectrum of 6d N=(1,0) Supergravity

Receipt and verification

First computed	2026-05-18T00:18:59.551867Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ff327553867eb26adddc86a6f90d35a7523b2734b1b7c2e49989b0fe0c96b50

Aliases

arxiv: 1804.02424 · arxiv_version: 1804.02424v1 · doi: 10.48550/arxiv.1804.02424 · pith_short_12: T7ZSOVJYM7VS · pith_short_16: T7ZSOVJYM7VSNLO5 · pith_short_8: T7ZSOVJY

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/T7ZSOVJYM7VSNLO5ZBVG7EGTLJ \
  | 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: 9ff327553867eb26adddc86a6f90d35a7523b2734b1b7c2e49989b0fe0c96b50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f634c4530910f61a6501474363c294749eb56bcb4b7b3ba00648c61f2df850e3",
    "cross_cats_sorted": [
      "hep-th",
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-04-06T19:02:15Z",
    "title_canon_sha256": "d4ae9d47bb482d1078dd7b04c7917bb6fe8b6acbbd0d8d9307b945c281268523"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02424",
    "kind": "arxiv",
    "version": 1
  }
}