Pith Number

pith:GXPXQBH4

pith:2015:GXPXQBH4YWLGGNB3RHI3U2RO5H

not attested not anchored not stored refs pending

Fast Collaborative Filtering from Implicit Feedback with Provable Guarantees

Sayantan Dasgupta

arxiv:1511.00792 v10 · 2015-11-03 · 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{GXPXQBH4YWLGGNB3RHI3U2RO5H}

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	2026-05-18T01:08:26.266843Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35df7804fcc59663343b89d1ba6a2ee9fd4efaff0707f194d410a4f30ff80aa5

Aliases

arxiv: 1511.00792 · arxiv_version: 1511.00792v10 · doi: 10.48550/arxiv.1511.00792 · pith_short_12: GXPXQBH4YWLG · pith_short_16: GXPXQBH4YWLGGNB3 · pith_short_8: GXPXQBH4

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/GXPXQBH4YWLGGNB3RHI3U2RO5H \
  | 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: 35df7804fcc59663343b89d1ba6a2ee9fd4efaff0707f194d410a4f30ff80aa5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b32e533579ab083f76e6f9821cbfc638fa234a39c83ceda287f48af27caa510",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-11-03T06:43:54Z",
    "title_canon_sha256": "e422d7fbeddc341c50f0a43c75295b5621bfebb9efef231590252b2f8f802a6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.00792",
    "kind": "arxiv",
    "version": 10
  }
}