Pith Number

pith:ISPWZQSE

pith:2018:ISPWZQSEJLGYPXQWVQXYMV73IB

not attested not anchored not stored refs pending

A Unified Knowledge Representation and Context-aware Recommender System in Internet of Things

Awa Alqahtani, Boualem Benatallah, Charith Perera, Ellis Solaiman, Prem Prakash Jayaraman, Rajiv Ranjan, Yinhao Li

arxiv:1805.04007 v2 · 2018-05-10 · cs.DC · cs.AI · 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{ISPWZQSEJLGYPXQWVQXYMV73IB}

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	2026-05-18T00:15:04.561910Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

449f6cc2444acd87de16ac2f8657fb4068520389ad96fa7f30c9a37f229f7990

Aliases

arxiv: 1805.04007 · arxiv_version: 1805.04007v2 · doi: 10.48550/arxiv.1805.04007 · pith_short_12: ISPWZQSEJLGY · pith_short_16: ISPWZQSEJLGYPXQW · pith_short_8: ISPWZQSE

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/ISPWZQSEJLGYPXQWVQXYMV73IB \
  | 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: 449f6cc2444acd87de16ac2f8657fb4068520389ad96fa7f30c9a37f229f7990

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e26971168c33a88d48e3d94a10c78eab9e9df372322595e3510529c80eea6d6",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2018-05-10T14:42:00Z",
    "title_canon_sha256": "e27dd489009971d76dd6788751552a652c90ecbeb18fc02f3ad704ddcb86b0c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.04007",
    "kind": "arxiv",
    "version": 2
  }
}