Pith Number

pith:7OR4CBIJ

pith:2015:7OR4CBIJC3VZXWON2SBIKFOWK4

not attested not anchored not stored refs pending

Evaluation of recommender systems in streaming environments

Al\'ipio M\'ario Jorge, Jo\~ao Gama, Jo\~ao Vinagre

arxiv:1504.08175 v1 · 2015-04-30 · 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{7OR4CBIJC3VZXWON2SBIKFOWK4}

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	2026-05-18T02:17:13.951597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fba3c1050916eb9bd9cdd4828515d6570af6c61f88688f61eb80dbe22eefeaba

Aliases

arxiv: 1504.08175 · arxiv_version: 1504.08175v1 · doi: 10.48550/arxiv.1504.08175 · pith_short_12: 7OR4CBIJC3VZ · pith_short_16: 7OR4CBIJC3VZXWON · pith_short_8: 7OR4CBIJ

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/7OR4CBIJC3VZXWON2SBIKFOWK4 \
  | 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: fba3c1050916eb9bd9cdd4828515d6570af6c61f88688f61eb80dbe22eefeaba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a6dd87378af1c4a6b515e699fe247523ef035168f8a888431e763f8622e4f1f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2015-04-30T11:41:49Z",
    "title_canon_sha256": "23f3bead8cc2389b93cc75712331a4f6c04cd0bc5f949a50fd6e48c1c521fedc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.08175",
    "kind": "arxiv",
    "version": 1
  }
}