Pith Number

pith:I4TKMWIN

pith:2026:I4TKMWINUJ36UZDUCOJC5QLQ3J

not attested not anchored not stored refs pending

Categorical absorptions of cone singularities

Martin Kalck, Nebojsa Pavic, the authors, with a joint appendix by Yujiro Kawamata

arxiv:2607.25406 v1 · 2026-07-28 · math.AG · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I4TKMWINUJ36UZDUCOJC5QLQ3J}

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	2026-07-29T01:25:14.050236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4726a6590da277ea647413922ec170da5f5002a845963938709a0d3636f4b7b0

Aliases

arxiv: 2607.25406 · arxiv_version: 2607.25406v1 · doi: 10.48550/arxiv.2607.25406 · pith_short_12: I4TKMWINUJ36 · pith_short_16: I4TKMWINUJ36UZDU · pith_short_8: I4TKMWIN

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/I4TKMWINUJ36UZDUCOJC5QLQ3J \
  | 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: 4726a6590da277ea647413922ec170da5f5002a845963938709a0d3636f4b7b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d6d128a1973deb4d80eaa466d015a219783e882c8f5d8fac571c5d066f3e145",
    "cross_cats_sorted": [
      "math.RT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2026-07-28T08:06:12Z",
    "title_canon_sha256": "44496ff7ee3c8b4ad496bcc3a88efd98b53e9071e54e043fcc2892aa9aa67ab2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.25406",
    "kind": "arxiv",
    "version": 1
  }
}