Pith Number

pith:SOKBBM5Y

pith:2015:SOKBBM5YX353VD5NPVZ5CIAM7X

not attested not anchored not stored refs pending

EigenRec: Generalizing PureSVD for Effective and Efficient Top-N Recommendations

Athanasios N. Nikolakopoulos, Efstratios Gallopoulos, John D. Garofalakis, Vassilis Kalantzis

arxiv:1511.06033 v3 · 2015-11-19 · cs.IR · cs.DB · cs.DC · cs.NA · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SOKBBM5YX353VD5NPVZ5CIAM7X}

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	2026-05-18T00:16:56.945555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

939410b3b8befbba8fad7d73d1200cfde94cde4a677a0e60dbfb33ab6daa537c

Aliases

arxiv: 1511.06033 · arxiv_version: 1511.06033v3 · doi: 10.48550/arxiv.1511.06033 · pith_short_12: SOKBBM5YX353 · pith_short_16: SOKBBM5YX353VD5N · pith_short_8: SOKBBM5Y

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/SOKBBM5YX353VD5NPVZ5CIAM7X \
  | 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: 939410b3b8befbba8fad7d73d1200cfde94cde4a677a0e60dbfb33ab6daa537c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e16eaf1282b25cd1862605a5a7a1646047a3be3c5d5cbb958d94a2e993aff41",
    "cross_cats_sorted": [
      "cs.DB",
      "cs.DC",
      "cs.NA",
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2015-11-19T00:34:51Z",
    "title_canon_sha256": "ffcfe8e6377dc720785f16dc95953b8cb01baa00c28a62e36583d811ec3f6cef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.06033",
    "kind": "arxiv",
    "version": 3
  }
}