Pith Number

pith:WMJY6ZUT

pith:2014:WMJY6ZUT52HMKRP5A6BLL3ORO6

not attested not anchored not stored refs pending

Vanishing homology of projective hypersurfaces with 1-dimensional singularities

Dirk Siersma, Mihai Tibar

arxiv:1411.2640 v3 · 2014-11-10 · math.AG · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WMJY6ZUT52HMKRP5A6BLL3ORO6}

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	2026-05-18T00:35:49.292840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3138f6693ee8ec545fd0782b5edd17799d28965912dd30328f54873874c1bb6

Aliases

arxiv: 1411.2640 · arxiv_version: 1411.2640v3 · doi: 10.48550/arxiv.1411.2640 · pith_short_12: WMJY6ZUT52HM · pith_short_16: WMJY6ZUT52HMKRP5 · pith_short_8: WMJY6ZUT

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/WMJY6ZUT52HMKRP5A6BLL3ORO6 \
  | 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: b3138f6693ee8ec545fd0782b5edd17799d28965912dd30328f54873874c1bb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a2c522e76279fd04c0297c93533290e32a9430ebaeb916d14c1a8acf3806870",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-11-10T21:55:24Z",
    "title_canon_sha256": "e8ebb8ac6b5ad614d793dcb16cf2d00c7711f44de8ccf7c98b14dfe5f8033ee0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.2640",
    "kind": "arxiv",
    "version": 3
  }
}