Pith Number

pith:DP73BBIW

pith:2009:DP73BBIWWPN2MTCW5EC2SKTV5U

not attested not anchored not stored refs pending

On the Milnor fibers of sandwiched singularities

Andras Nemethi, Patrick Popescu-Pampu

arxiv:0906.2920 v1 · 2009-06-16 · math.AG · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DP73BBIWWPN2MTCW5EC2SKTV5U}

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	2026-05-18T03:37:53.602046Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bffb08516b3dba64c56e905a92a75ed3f8690d467b04b1105ef098a62701470

Aliases

arxiv: 0906.2920 · arxiv_version: 0906.2920v1 · doi: 10.48550/arxiv.0906.2920 · pith_short_12: DP73BBIWWPN2 · pith_short_16: DP73BBIWWPN2MTCW · pith_short_8: DP73BBIW

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/DP73BBIWWPN2MTCW5EC2SKTV5U \
  | 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: 1bffb08516b3dba64c56e905a92a75ed3f8690d467b04b1105ef098a62701470

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3b49b2176e00e8950b98f129f07fd0c67d992bc987a7f769ffa960a83957866",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2009-06-16T12:59:46Z",
    "title_canon_sha256": "f485ce91eda74b483b75466ed06ce5505bc424cc61d0e6b47023cd69881392f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.2920",
    "kind": "arxiv",
    "version": 1
  }
}