Pith Number

pith:PTEHB7UI

pith:2026:PTEHB7UIKL6UZWPBRB6WCD6CFU

not attested not anchored not stored refs pending

Efficient Recommendations via Graph Coarsening and Label Propagation

Alessandro Sbandi, Fabrizio Silvestri, Federico Siciliano

arxiv:2607.22287 v1 · 2026-07-24 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PTEHB7UIKL6UZWPBRB6WCD6CFU}

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	2026-07-27T01:20:57.906353Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cc870fe8852fd4cd9e1887d610fc22d1b869380306fd655c3f249ab87aa6043

Aliases

arxiv: 2607.22287 · arxiv_version: 2607.22287v1 · doi: 10.48550/arxiv.2607.22287 · pith_short_12: PTEHB7UIKL6U · pith_short_16: PTEHB7UIKL6UZWPB · pith_short_8: PTEHB7UI

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/PTEHB7UIKL6UZWPBRB6WCD6CFU \
  | 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: 7cc870fe8852fd4cd9e1887d610fc22d1b869380306fd655c3f249ab87aa6043

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a7208c4c18b098bd1b7697a28cfc406eb0af2dedc1645d9d29e10be52815383",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-07-24T13:25:26Z",
    "title_canon_sha256": "b8c6aadae6645d22e1278e81a18f6494f4ef1e1f2c4955630a6d50b1a570a50f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.22287",
    "kind": "arxiv",
    "version": 1
  }
}