Pith Number

pith:VDXO7655

pith:2019:VDXO7655OD6SLU2S6GSWWABLUP

not attested not anchored not stored refs pending

A technical remark on the Donaldson-Futaki invariant for Fano reductive group compactifications

Gabriella Clemente

arxiv:1908.06766 v4 · 2019-08-19 · 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{VDXO7655OD6SLU2S6GSWWABLUP}

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	2026-07-05T10:15:39.969141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8eeeffbbd70fd25d352f1a56b002ba3eb1111b3d856ec6f3e91c02dcccd77b3

Aliases

arxiv: 1908.06766 · arxiv_version: 1908.06766v4 · doi: 10.48550/arxiv.1908.06766 · pith_short_12: VDXO7655OD6S · pith_short_16: VDXO7655OD6SLU2S · pith_short_8: VDXO7655

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/VDXO7655OD6SLU2S6GSWWABLUP \
  | 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: a8eeeffbbd70fd25d352f1a56b002ba3eb1111b3d856ec6f3e91c02dcccd77b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46f981519b7a1c9d421d79fe5ae6d6e34c49df95d66dbe5ff675d6d56972327f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-08-19T12:50:07Z",
    "title_canon_sha256": "b1964ad20e82c9fea301e928a1fca3d5c5a69e6bb9474005dd7f4a9ea1ab9c11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06766",
    "kind": "arxiv",
    "version": 4
  }
}