Pith Number

pith:HBBNRX22

pith:2015:HBBNRX22ZB2ACQJYYUDGTXT4ZT

not attested not anchored not stored refs pending

Deforming spaces of m-jets of hypersurfaces singularities

Maximiliano Leyton-\'Alvarez

arxiv:1505.01079 v4 · 2015-05-05 · 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{HBBNRX22ZB2ACQJYYUDGTXT4ZT}

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	2026-05-18T00:12:35.897342Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3842d8df5ac874014138c50669de7cccd49a17ef770f1936fdc0efd6542e6786

Aliases

arxiv: 1505.01079 · arxiv_version: 1505.01079v4 · doi: 10.48550/arxiv.1505.01079 · pith_short_12: HBBNRX22ZB2A · pith_short_16: HBBNRX22ZB2ACQJY · pith_short_8: HBBNRX22

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/HBBNRX22ZB2ACQJYYUDGTXT4ZT \
  | 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: 3842d8df5ac874014138c50669de7cccd49a17ef770f1936fdc0efd6542e6786

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ba52b0b5c5514947d17510e5fe9fc62f6c6544880f46e6aef93ff7f6aceb3e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-05-05T16:53:10Z",
    "title_canon_sha256": "5e804ad5876fe072c68a3156b415decbe1570aa5445f490a663da41f74b530a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.01079",
    "kind": "arxiv",
    "version": 4
  }
}