Pith Number

pith:7J223DN2

pith:2018:7J223DN2643F6UHHLPNZHSPCD5

not attested not anchored not stored refs pending

Private Information Retrieval in Graph Based Replication Systems

Eitan Yaakobi, Itzhak Tamo, Netanel Raviv

arxiv:1812.01566 v2 · 2018-12-04 · cs.IT · cs.CR · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7J223DN2643F6UHHLPNZHSPCD5}

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	2026-05-17T23:52:03.799133Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa75ad8dbaf7365f50e75bdb93c9e21f628efc5b10c2d4d93eac5698ccadd442

Aliases

arxiv: 1812.01566 · arxiv_version: 1812.01566v2 · doi: 10.48550/arxiv.1812.01566 · pith_short_12: 7J223DN2643F · pith_short_16: 7J223DN2643F6UHH · pith_short_8: 7J223DN2

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/7J223DN2643F6UHHLPNZHSPCD5 \
  | 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: fa75ad8dbaf7365f50e75bdb93c9e21f628efc5b10c2d4d93eac5698ccadd442

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8188c0c1aada3decdc8ba0a6869379d7d33f228b34d18d05be7bad2b320154d8",
    "cross_cats_sorted": [
      "cs.CR",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-12-04T18:13:26Z",
    "title_canon_sha256": "cd437e117e0345c0d91753c1731136e7a4c28c0e7236f687c9a5d072a85c082d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.01566",
    "kind": "arxiv",
    "version": 2
  }
}