Pith Number

pith:SSRPCPYZ

pith:2017:SSRPCPYZDMRYZVSQXKSZ4Z5RSC

not attested not anchored not stored refs pending

A dynamic multi-level collaborative filtering method for improved recommendations

Christos K. Georgiadis, Nikolaos Polatidis

arxiv:1702.01713 v1 · 2017-02-06 · 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{SSRPCPYZDMRYZVSQXKSZ4Z5RSC}

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	2026-05-18T00:51:19.799214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94a2f13f191b238cd650baa59e67b1909e3b6761328c0e9951b5cfdd74aabe79

Aliases

arxiv: 1702.01713 · arxiv_version: 1702.01713v1 · doi: 10.48550/arxiv.1702.01713 · pith_short_12: SSRPCPYZDMRY · pith_short_16: SSRPCPYZDMRYZVSQ · pith_short_8: SSRPCPYZ

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/SSRPCPYZDMRYZVSQXKSZ4Z5RSC \
  | 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: 94a2f13f191b238cd650baa59e67b1909e3b6761328c0e9951b5cfdd74aabe79

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c696ffdcfe5da4168782ad4434020b7d8ec462e56b79d8b80dd4e486c822ed9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2017-02-06T17:19:07Z",
    "title_canon_sha256": "ff48944af1cb2097cdd9ee49dc6fc61476238e7797b23a25a1899d608b7d1768"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.01713",
    "kind": "arxiv",
    "version": 1
  }
}