Pith Number

pith:C5JUTUKS

pith:2018:C5JUTUKSX7MBPY3ZKW3ULCXGWI

not attested not anchored not stored refs pending

Chunk Reduction for Multi-Parameter Persistent Homology

Michael Kerber, Ulderico Fugacci

arxiv:1812.08580 v4 · 2018-12-20 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C5JUTUKSX7MBPY3ZKW3ULCXGWI}

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	2026-05-17T23:51:05.157159Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

175349d152bfd817e37955b7458ae6b2138bc346386e399d05911e8539b4c2b1

Aliases

arxiv: 1812.08580 · arxiv_version: 1812.08580v4 · doi: 10.48550/arxiv.1812.08580 · pith_short_12: C5JUTUKSX7MB · pith_short_16: C5JUTUKSX7MBPY3Z · pith_short_8: C5JUTUKS

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/C5JUTUKSX7MBPY3ZKW3ULCXGWI \
  | 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: 175349d152bfd817e37955b7458ae6b2138bc346386e399d05911e8539b4c2b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25338fdd9217b8725cb36ca1e6a38bcce3fb87d6d985538f299557c0dda6f3a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-12-20T14:06:46Z",
    "title_canon_sha256": "a2528c699445219787ab43f48084f6f9914bf620c8bf38fabc21baf3cf73ec29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.08580",
    "kind": "arxiv",
    "version": 4
  }
}