Pith Number

pith:AR77JP4O

pith:2015:AR77JP4OS7FIIU3VORUVXMXGXC

not attested not anchored not stored refs pending

Thresholding for Top-k Recommendation with Temporal Dynamics

Lei Tang

arxiv:1506.02190 v2 · 2015-06-06 · cs.IR · 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{AR77JP4OS7FIIU3VORUVXMXGXC}

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	2026-05-18T01:27:31.563503Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

047ff4bf8e97ca84537574695bb2e6b8aa52c490f5103ea4356bfc354609a8fc

Aliases

arxiv: 1506.02190 · arxiv_version: 1506.02190v2 · doi: 10.48550/arxiv.1506.02190 · pith_short_12: AR77JP4OS7FI · pith_short_16: AR77JP4OS7FIIU3V · pith_short_8: AR77JP4O

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/AR77JP4OS7FIIU3VORUVXMXGXC \
  | 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: 047ff4bf8e97ca84537574695bb2e6b8aa52c490f5103ea4356bfc354609a8fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "605a99e32e4598c6437671aa46cd3c16fc21ac22e9efd449c0ac7b8bcda06893",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2015-06-06T20:13:28Z",
    "title_canon_sha256": "1415ea04336a8230dc5707ecd37163200b5e99be70c678256d708913cb892aaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.02190",
    "kind": "arxiv",
    "version": 2
  }
}