Pith Number

pith:3ZTLAAAO

pith:2020:3ZTLAAAOG54ANIWCVLGHGG5UM6

not attested not anchored not stored refs pending

Echo Chambers in Collaborative Filtering Based Recommendation Systems

Emil Noordeh, Harris Shadmany, Roman Levin, Ruochen Jiang

arxiv:2011.03890 v1 · 2020-11-08 · cs.IR · cs.AI · 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{3ZTLAAAOG54ANIWCVLGHGG5UM6}

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.

Cited by

1 paper in Pith

The Future is Agentic: Definitions, Perspectives, and Open Challenges of Multi-Agent Recommender Systems

Receipt and verification

First computed	2026-07-05T01:50:00.449558Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de66b0000e377806a2c2aacc731bb4678f1d81ec3b378c19529527921eb06515

Aliases

arxiv: 2011.03890 · arxiv_version: 2011.03890v1 · doi: 10.48550/arxiv.2011.03890 · pith_short_12: 3ZTLAAAOG54A · pith_short_16: 3ZTLAAAOG54ANIWC · pith_short_8: 3ZTLAAAO

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/3ZTLAAAOG54ANIWCVLGHGG5UM6 \
  | 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: de66b0000e377806a2c2aacc731bb4678f1d81ec3b378c19529527921eb06515

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48e9692cecc2720be4b9cb8e0138c9b99c724eab5b13ff12dd8570c30e84cf55",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2020-11-08T02:35:47Z",
    "title_canon_sha256": "7d30ac268ad754b8d073024372ff52db5f4e08b612d4bfbd2b9c10723d19f67d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.03890",
    "kind": "arxiv",
    "version": 1
  }
}