Pith Number

pith:2FAAB5JJ

pith:2017:2FAAB5JJTQVEWDHWZGUWAW6TUK

not attested not anchored not stored refs pending

The Pyramid Scheme: Oblivious RAM for Trusted Processors

Felix Schuster, Lawrence Esswood, Manuel Costa, Olga Ohrimenko, Sameer Wagh

arxiv:1712.07882 v1 · 2017-12-21 · 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{2FAAB5JJTQVEWDHWZGUWAW6TUK}

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	2026-05-18T00:27:29.476939Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d14000f5299c2a4b0cf6c9a9605bd3a28045fc3098d3624d452fd9da6fb56949

Aliases

arxiv: 1712.07882 · arxiv_version: 1712.07882v1 · doi: 10.48550/arxiv.1712.07882 · pith_short_12: 2FAAB5JJTQVE · pith_short_16: 2FAAB5JJTQVEWDHW · pith_short_8: 2FAAB5JJ

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/2FAAB5JJTQVEWDHWZGUWAW6TUK \
  | 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: d14000f5299c2a4b0cf6c9a9605bd3a28045fc3098d3624d452fd9da6fb56949

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe681309c79fe63236cd15aebd10d8a820788e68b90ba11b049d49912ca6a997",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2017-12-21T11:32:03Z",
    "title_canon_sha256": "340762f4a3ba7acc51d3335c5cd47fbd564479578f2d6cfa926099d69ba3872d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.07882",
    "kind": "arxiv",
    "version": 1
  }
}