Pith Number

pith:XPD2SGQ3

pith:2011:XPD2SGQ3SD2DYS557N635IQ2EM

not attested not anchored not stored refs pending

City on the Sky: Flexible, Secure Data Sharing on the Cloud

Anwitaman Datta, Dinh Tien Tuan Anh, Wang Wenqiang

arxiv:1108.3915 v3 · 2011-08-19 · cs.DB · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XPD2SGQ3SD2DYS557N635IQ2EM}

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	2026-05-18T04:12:34.901984Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbc7a91a1b90f43c4bbdfb7dbea21a232d48aa94a877bd35cc0b966216a84671

Aliases

arxiv: 1108.3915 · arxiv_version: 1108.3915v3 · doi: 10.48550/arxiv.1108.3915 · pith_short_12: XPD2SGQ3SD2D · pith_short_16: XPD2SGQ3SD2DYS55 · pith_short_8: XPD2SGQ3

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/XPD2SGQ3SD2DYS557N635IQ2EM \
  | 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: bbc7a91a1b90f43c4bbdfb7dbea21a232d48aa94a877bd35cc0b966216a84671

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b6902309871ab4b00de6e4fe589eb4b7157baa28e6dbd0bc1fd82768b7c6b75",
    "cross_cats_sorted": [
      "cs.NI"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2011-08-19T08:46:28Z",
    "title_canon_sha256": "035e4716636629f9f5fd93b22a1939b28a6d3d6db5bd85ed3ea79b30e785d3a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.3915",
    "kind": "arxiv",
    "version": 3
  }
}