Pith Number

pith:XUXO5KZ5

pith:2026:XUXO5KZ5HPHLJ5P55HLCG4VS6I

not attested not anchored not stored refs pending

Topological Signal Processing: An Application-Oriented Tutorial

Dimitri Van De Ville, Flavia Petruso, Maria Giulia Preti

arxiv:2605.22853 v1 · 2026-05-18 · eess.SP · cs.LG · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XUXO5KZ5HPHLJ5P55HLCG4VS6I}

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	2026-05-25T00:00:59.324479Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd2eeeab3d3bceb4f5fde9d62372b2f21567848795d775f135d4d04f0ef40a62

Aliases

arxiv: 2605.22853 · arxiv_version: 2605.22853v1 · doi: 10.48550/arxiv.2605.22853 · pith_short_12: XUXO5KZ5HPHL · pith_short_16: XUXO5KZ5HPHLJ5P5 · pith_short_8: XUXO5KZ5

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/XUXO5KZ5HPHLJ5P55HLCG4VS6I \
  | 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: bd2eeeab3d3bceb4f5fde9d62372b2f21567848795d775f135d4d04f0ef40a62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e48564d0069b04cc1f16e8c44ac40035f2168ece442c48b1d730ace099ef3f9",
    "cross_cats_sorted": [
      "cs.LG",
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2026-05-18T08:21:50Z",
    "title_canon_sha256": "423708f61c7c4dc85c4110065a4ab65a5cd50b7627be9effc1a8bcc5258e7acb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.22853",
    "kind": "arxiv",
    "version": 1
  }
}