Pith Number

pith:DFZBOUHA

pith:2017:DFZBOUHAYMCTRBDZXBHQLOAWQG

not attested not anchored not stored refs pending

Food Recommender Systems: Important Contributions, Challenges and Future Research Directions

Christoph Trattner, David Elsweiler

arxiv:1711.02760 v2 · 2017-11-07 · cs.IR · cs.CY · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DFZBOUHAYMCTRBDZXBHQLOAWQG}

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	2026-05-18T00:30:54.389233Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19721750e0c305388479b84f05b816819bfebe3aa7461fea0b8feae172138049

Aliases

arxiv: 1711.02760 · arxiv_version: 1711.02760v2 · doi: 10.48550/arxiv.1711.02760 · pith_short_12: DFZBOUHAYMCT · pith_short_16: DFZBOUHAYMCTRBDZ · pith_short_8: DFZBOUHA

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/DFZBOUHAYMCTRBDZXBHQLOAWQG \
  | 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: 19721750e0c305388479b84f05b816819bfebe3aa7461fea0b8feae172138049

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1fcaf7e0c5b50e62217fb67d04d6d3e3c91b82fb95250ea39f4cea099a7f4c8",
    "cross_cats_sorted": [
      "cs.CY",
      "cs.HC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2017-11-07T22:52:12Z",
    "title_canon_sha256": "9efe6f8906e280d704dbc8f992c09dc0072eec95b4406493de2065511492ddc5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.02760",
    "kind": "arxiv",
    "version": 2
  }
}