Pith Number

pith:BW4D5X2G

pith:2019:BW4D5X2G6CC4CI3LSQSYKKHUKU

not attested not anchored not stored refs pending

Connectivity-Optimized Representation Learning via Persistent Homology

Christoph Hofer, Mandar Dixit, Marc Niethammer, Roland Kwitt

arxiv:1906.09003 v1 · 2019-06-21 · cs.LG · cs.CG · math.AT · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BW4D5X2G6CC4CI3LSQSYKKHUKU}

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	2026-05-17T23:42:47.090621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0db83edf46f085c1236b94258528f4552fde3293004faf982514b1018a0be475

Aliases

arxiv: 1906.09003 · arxiv_version: 1906.09003v1 · doi: 10.48550/arxiv.1906.09003 · pith_short_12: BW4D5X2G6CC4 · pith_short_16: BW4D5X2G6CC4CI3L · pith_short_8: BW4D5X2G

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/BW4D5X2G6CC4CI3LSQSYKKHUKU \
  | 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: 0db83edf46f085c1236b94258528f4552fde3293004faf982514b1018a0be475

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06e14ea97210dd935c0aef1b17e0b0a5a0319b8c309a4a06122b68c9eccd508f",
    "cross_cats_sorted": [
      "cs.CG",
      "math.AT",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-06-21T08:23:57Z",
    "title_canon_sha256": "282e1a20620594e26d49610e457139a988577fb6c6bef7d96ef34649e62ed2ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.09003",
    "kind": "arxiv",
    "version": 1
  }
}