Pith Number

pith:VN2WOSCL

pith:2021:VN2WOSCLDZVKBZUYL6NEKR77FN

not attested not anchored not stored refs pending

Density-Ratio Based Personalised Ranking from Implicit Feedback

Masahiro Kato, Mayu Otani, Riku Togashi, Shin'ichi Satoh

arxiv:2101.07481 v1 · 2021-01-19 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VN2WOSCLDZVKBZUYL6NEKR77FN}

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	2026-07-05T02:07:58.168711Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab7567484b1e6aa0e6985f9a4547ff2b6c76e5dfef30cf97fcbf7ef74472dc52

Aliases

arxiv: 2101.07481 · arxiv_version: 2101.07481v1 · doi: 10.48550/arxiv.2101.07481 · pith_short_12: VN2WOSCLDZVK · pith_short_16: VN2WOSCLDZVKBZUY · pith_short_8: VN2WOSCL

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/VN2WOSCLDZVKBZUYL6NEKR77FN \
  | 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: ab7567484b1e6aa0e6985f9a4547ff2b6c76e5dfef30cf97fcbf7ef74472dc52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf00a7d9bc19250b5f43aaa5c7e826cebb13e162c56a6fddab4e054947ba7fb2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-01-19T06:38:57Z",
    "title_canon_sha256": "9b449a46e4d712b212799f379887373ecb0b21deebcf5454f6009435bf834a8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.07481",
    "kind": "arxiv",
    "version": 1
  }
}