Pith Number

pith:SIZF7M3A

pith:2026:SIZF7M3A4UD6IPP4F7DJYCLPFF

not attested not anchored not stored refs pending

Directed Graph Topology Inference via Graph Filter Identification

Andrei Buciulea, Antonio G. Marques, Gonzalo Mateos, Rasoul Shafipour, Santiago Segarra

arxiv:2606.27455 v1 · 2026-06-25 · stat.ML · cs.LG · cs.SI · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SIZF7M3A4UD6IPP4F7DJYCLPFF}

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	2026-06-29T00:14:06.761084Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92325fb360e507e43dfc2fc69c096f294e483e3128da4dfb429ef4abe4902259

Aliases

arxiv: 2606.27455 · arxiv_version: 2606.27455v1 · doi: 10.48550/arxiv.2606.27455 · pith_short_12: SIZF7M3A4UD6 · pith_short_16: SIZF7M3A4UD6IPP4 · pith_short_8: SIZF7M3A

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/SIZF7M3A4UD6IPP4F7DJYCLPFF \
  | 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: 92325fb360e507e43dfc2fc69c096f294e483e3128da4dfb429ef4abe4902259

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22e3ee36f9c506313553e5e542162f4efeb598160f5036263f07a0869a068698",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.SI",
      "eess.SP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2026-06-25T18:25:57Z",
    "title_canon_sha256": "b5a60e754f5bf0b988a491708719848436bf9429b38cd03be06be345fc769e10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.27455",
    "kind": "arxiv",
    "version": 1
  }
}