Pith Number

pith:ULPON3DW

pith:2013:ULPON3DWPKF2TOTRDZ6FHYRNWI

not attested not anchored not stored refs pending

Building an Expert System for Evaluation of Commercial Cloud Services

He Zhang, Liam O'Brien, Rainbow Cai, Zheng Li

arxiv:1302.2202 v1 · 2013-02-09 · cs.DC · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ULPON3DWPKF2TOTRDZ6FHYRNWI}

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	2026-05-18T03:34:02.004082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2dee6ec767a8ba9ba711e7c53e22db20f1f56f13f5868762e3784b8e256d3e5

Aliases

arxiv: 1302.2202 · arxiv_version: 1302.2202v1 · doi: 10.48550/arxiv.1302.2202 · pith_short_12: ULPON3DWPKF2 · pith_short_16: ULPON3DWPKF2TOTR · pith_short_8: ULPON3DW

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/ULPON3DWPKF2TOTRDZ6FHYRNWI \
  | 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: a2dee6ec767a8ba9ba711e7c53e22db20f1f56f13f5868762e3784b8e256d3e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "528f210fe13ee741e655a0397b00c9e6d51f00cf58b452f2a4ca74731d1fd843",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2013-02-09T06:04:35Z",
    "title_canon_sha256": "5bec3d38df78f783d4d8a093e7b49e831c653552bcb19b1077b096f6cf13c784"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.2202",
    "kind": "arxiv",
    "version": 1
  }
}