Pith Number

pith:K2TFBBCD

pith:2026:K2TFBBCDE4VLRFLS5RA4YL2AJ3

not attested not anchored not stored refs pending

ZoRRO: A Zero-Weight Personalized Recommender System for Scalable News Recommendation

Jes Frellsen, Johannes Kruse, Jon Tofteskov, Julian McAuley, Kasper Lindskow, Michael Riis Andersen, Ryotaro Shimizu

arxiv:2607.10910 v1 · 2026-07-12 · cs.IR · 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{K2TFBBCDE4VLRFLS5RA4YL2AJ3}

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	2026-07-14T01:21:47.365356Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56a6508443272ab89572ec41cc2f404ee9c4c153bb0bd0d75f7ac079d3904944

Aliases

arxiv: 2607.10910 · arxiv_version: 2607.10910v1 · doi: 10.48550/arxiv.2607.10910 · pith_short_12: K2TFBBCDE4VL · pith_short_16: K2TFBBCDE4VLRFLS · pith_short_8: K2TFBBCD

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/K2TFBBCDE4VLRFLS5RA4YL2AJ3 \
  | 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: 56a6508443272ab89572ec41cc2f404ee9c4c153bb0bd0d75f7ac079d3904944

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "991869949b2d7c9d563be5358d6d9de170df27949a899be8dfa73744cc313678",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2026-07-12T20:30:24Z",
    "title_canon_sha256": "f1f7a4acf60b694604069c2718d69625ce36ca0d76c50e521b998ea8af653ce7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.10910",
    "kind": "arxiv",
    "version": 1
  }
}