Pith Number

pith:VZZBUDZR

pith:2010:VZZBUDZRB67I5R72EZJDMOR4V4

not attested not anchored not stored refs pending

An improved HeatS+ProbS hybrid recommendation algorithm based on heterogeneous initial resource configurations

Chuang Liu, Wei-Xing Zhou

arxiv:1005.3124 v2 · 2010-05-18 · physics.soc-ph · 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{VZZBUDZRB67I5R72EZJDMOR4V4}

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	2026-05-18T03:44:02.975830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae721a0f310fbe8ec7fa2652363a3caf30ec7dadea5e8ebf85c1ef1179a4f279

Aliases

arxiv: 1005.3124 · arxiv_version: 1005.3124v2 · doi: 10.48550/arxiv.1005.3124 · pith_short_12: VZZBUDZRB67I · pith_short_16: VZZBUDZRB67I5R72 · pith_short_8: VZZBUDZR

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/VZZBUDZRB67I5R72EZJDMOR4V4 \
  | 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: ae721a0f310fbe8ec7fa2652363a3caf30ec7dadea5e8ebf85c1ef1179a4f279

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db32c52135ff4b06a038a4b0222f58bd0be2d8254c316e74d8842b65fd4729a9",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2010-05-18T09:24:23Z",
    "title_canon_sha256": "478bbebee14c13022ee6f620dd559a1fb54b462963fa8c8dd0e5055f6d2a7110"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.3124",
    "kind": "arxiv",
    "version": 2
  }
}