Pith Number

pith:OCF5DZ3R

pith:2017:OCF5DZ3R5M7ZQ3VOXFLXQGHQLH

not attested not anchored not stored refs pending

Cloud Data Auditing Using Proofs of Retrievability

Binanda Sengupta, Sushmita Ruj

arxiv:1711.06039 v1 · 2017-11-16 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OCF5DZ3R5M7ZQ3VOXFLXQGHQLH}

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	2026-05-18T00:30:23.480449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

708bd1e771eb3f986eaeb9577818f059e7fd1da652a09c1a8e287d0dfbddee13

Aliases

arxiv: 1711.06039 · arxiv_version: 1711.06039v1 · doi: 10.48550/arxiv.1711.06039 · pith_short_12: OCF5DZ3R5M7Z · pith_short_16: OCF5DZ3R5M7ZQ3VO · pith_short_8: OCF5DZ3R

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/OCF5DZ3R5M7ZQ3VOXFLXQGHQLH \
  | 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: 708bd1e771eb3f986eaeb9577818f059e7fd1da652a09c1a8e287d0dfbddee13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78f5322781d84f0121b0603c4cef5e60a9f9caa6a92bb48cc20f59d5296527d8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2017-11-16T11:37:46Z",
    "title_canon_sha256": "114d99b8d932e3b8e53b5ffa5c6d2fbfad29d38e73e59ba1926dd720c2d4488f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.06039",
    "kind": "arxiv",
    "version": 1
  }
}