Pith Number

pith:72VGRSHZ

pith:2026:72VGRSHZV2JHHUKKWGNKXG5DCD

not attested not anchored not stored refs pending

OQRAM: Oblivious Quantum Random Access Memory for Securing Delegated Quantum Queries

Jakub Szefer, Shifan Xu, Yizhuo Tan, Yongshan Ding

arxiv:2607.27171 v1 · 2026-07-29 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{72VGRSHZV2JHHUKKWGNKXG5DCD}

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	2026-07-30T01:23:56.854154Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

feaa68c8f9ae9273d14ab19aab9ba310f478ef75c9aa52bd469cda4d53c61bc6

Aliases

arxiv: 2607.27171 · arxiv_version: 2607.27171v1 · doi: 10.48550/arxiv.2607.27171 · pith_short_12: 72VGRSHZV2JH · pith_short_16: 72VGRSHZV2JHHUKK · pith_short_8: 72VGRSHZ

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/72VGRSHZV2JHHUKKWGNKXG5DCD \
  | 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: feaa68c8f9ae9273d14ab19aab9ba310f478ef75c9aa52bd469cda4d53c61bc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "512b50210ef30eb86c37571e6ec0aa2230a1060f15ecb942123230596bd752a7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-07-29T17:46:06Z",
    "title_canon_sha256": "b8f32ecfc3dd973a2039b040fcc86d5fb50a3731b4fdf529ce51418ab0024869"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.27171",
    "kind": "arxiv",
    "version": 1
  }
}