Pith Number

pith:5DDSYXHJ

pith:2015:5DDSYXHJRG3ISUE2OXIT4ZFCEZ

not attested not anchored not stored refs pending

Don't Trust the Cloud, Verify: Integrity and Consistency for Cloud Object Stores

Christian Cachin, Marcus Brandenburger, Nikola Kne\v{z}evi\'c

arxiv:1502.04496 v2 · 2015-02-16 · cs.DC · 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{5DDSYXHJRG3ISUE2OXIT4ZFCEZ}

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	2026-05-18T01:06:24.712205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8c72c5ce989b689509a75d13e64a2267f68c3529dc9af2b6a2dfb5e79b457ac

Aliases

arxiv: 1502.04496 · arxiv_version: 1502.04496v2 · doi: 10.48550/arxiv.1502.04496 · pith_short_12: 5DDSYXHJRG3I · pith_short_16: 5DDSYXHJRG3ISUE2 · pith_short_8: 5DDSYXHJ

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/5DDSYXHJRG3ISUE2OXIT4ZFCEZ \
  | 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: e8c72c5ce989b689509a75d13e64a2267f68c3529dc9af2b6a2dfb5e79b457ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a553281cd00e9c5a297bd81034966062e43a6d0808c302076757df1522669a1",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2015-02-16T11:15:03Z",
    "title_canon_sha256": "2d931742eb35806fada491f0115928ff6348a9410fc99dc129e3d722e0c88bfd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.04496",
    "kind": "arxiv",
    "version": 2
  }
}