Pith Number

pith:VYEGC4TO

pith:2018:VYEGC4TOPUBKJAADNO6QP7OC67

not attested not anchored not stored refs pending

Rational Homology Manifolds and Hypersurface Normalizations

Brian Hepler

arxiv:1804.09799 v3 · 2018-04-25 · 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{VYEGC4TOPUBKJAADNO6QP7OC67}

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	2026-05-18T00:08:25.518398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae0861726e7d02a480036bbd07fdc2f7f8a98c9b31a7153c138d3468e8965850

Aliases

arxiv: 1804.09799 · arxiv_version: 1804.09799v3 · doi: 10.48550/arxiv.1804.09799 · pith_short_12: VYEGC4TOPUBK · pith_short_16: VYEGC4TOPUBKJAAD · pith_short_8: VYEGC4TO

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/VYEGC4TOPUBKJAADNO6QP7OC67 \
  | 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: ae0861726e7d02a480036bbd07fdc2f7f8a98c9b31a7153c138d3468e8965850

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "efee147101b5df20e5a80df8768464be913412d5434df2d82970afc00ea6e5f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2018-04-25T21:00:32Z",
    "title_canon_sha256": "269a43d3a5355407570d2d4ac76fad47a6bdcb0155f4813db25b2a84f9196c49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.09799",
    "kind": "arxiv",
    "version": 3
  }
}