Pith Number

pith:4Y2XDTKH

pith:2020:4Y2XDTKHXSUX6IJVAFDZP5J4TL

not attested not anchored not stored refs pending

Functoriality for symplectic and contact cutting, and equivariant radial-squared blowups

Yael Karshon

arxiv:2011.04015 v1 · 2020-11-08 · math.SG · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4Y2XDTKHXSUX6IJVAFDZP5J4TL}

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

Classification of locally standard torus actions

Receipt and verification

First computed	2026-07-05T01:50:01.658776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e63571cd47bca97f2135014797f53c9aeae3a0fa2beb224c345c1b2836373324

Aliases

arxiv: 2011.04015 · arxiv_version: 2011.04015v1 · doi: 10.48550/arxiv.2011.04015 · pith_short_12: 4Y2XDTKHXSUX · pith_short_16: 4Y2XDTKHXSUX6IJV · pith_short_8: 4Y2XDTKH

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/4Y2XDTKHXSUX6IJVAFDZP5J4TL \
  | 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: e63571cd47bca97f2135014797f53c9aeae3a0fa2beb224c345c1b2836373324

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5aeb6fc0a665dd62cabda76e0831fff99c8dbe5370f9ce74d8e9da7c2a8a0a07",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2020-11-08T16:42:07Z",
    "title_canon_sha256": "3da916a3b151dbd859824ebea6344933a2c1e4a5a791446b488f4fbba483e7b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.04015",
    "kind": "arxiv",
    "version": 1
  }
}