Pith Number

pith:CZO47PPA

pith:2019:CZO47PPA2PAI3OMJ3TLDX4IB3Z

not attested not anchored not stored refs pending

Hotel Recommendation System

Aditi A. Mavalankar, Ajitesh Gupta, Chetan Gandotra, Rishabh Misra

arxiv:1908.07498 v2 · 2019-08-20 · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CZO47PPA2PAI3OMJ3TLDX4IB3Z}

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	2026-07-04T23:58:58.854128Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

165dcfbde0d3c08db989dcd63bf101de507a7a14096b20665a31d669a54fa65b

Aliases

arxiv: 1908.07498 · arxiv_version: 1908.07498v2 · doi: 10.48550/arxiv.1908.07498 · pith_short_12: CZO47PPA2PAI · pith_short_16: CZO47PPA2PAI3OMJ · pith_short_8: CZO47PPA

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/CZO47PPA2PAI3OMJ3TLDX4IB3Z \
  | 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: 165dcfbde0d3c08db989dcd63bf101de507a7a14096b20665a31d669a54fa65b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a6096ae5a0a19cb1de92f623e6bd4949ec53a25292574d24cc72088ede57966",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-08-20T17:20:41Z",
    "title_canon_sha256": "fccc8bd1380261faa57dbe16ceadf41a70ffeb300962e789645fb2708d7e4965"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.07498",
    "kind": "arxiv",
    "version": 2
  }
}