Pith Number

pith:BZ2OZTUI

pith:2015:BZ2OZTUIJIXGU35XHLNXZGQLK7

not attested not anchored not stored refs pending

A vertex similarity index for better personalized recommendation

Jian Gao, Jin-Hu Liu, Ling-Jiao Chen, Tao Zhou, Zi-Ke Zhang

arxiv:1510.02348 v2 · 2015-10-08 · cs.IR · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BZ2OZTUIJIXGU35XHLNXZGQLK7}

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	2026-05-18T00:52:23.768178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e74ecce884a2e6a6fb73adb7c9a0b57e3cc25be5994356e8ea8fbb871baf4db

Aliases

arxiv: 1510.02348 · arxiv_version: 1510.02348v2 · doi: 10.48550/arxiv.1510.02348 · pith_short_12: BZ2OZTUIJIXG · pith_short_16: BZ2OZTUIJIXGU35X · pith_short_8: BZ2OZTUI

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/BZ2OZTUIJIXGU35XHLNXZGQLK7 \
  | 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: 0e74ecce884a2e6a6fb73adb7c9a0b57e3cc25be5994356e8ea8fbb871baf4db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e07de187f3e27aa27be11059ea8c79f029ba320cd8bff98db8be58fb201d8124",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2015-10-08T14:50:50Z",
    "title_canon_sha256": "8f9cc5dc7204cd89b3f9d3f2f7369309886c406f438fb56c3ae305066759fe4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.02348",
    "kind": "arxiv",
    "version": 2
  }
}