Pith Number

pith:O2O3LIA5

pith:2022:O2O3LIA5E54ZZ4OBE4UWUAIJXE

not attested not anchored not stored refs pending

Storage and Retrieval Codes in PIR Schemes with Colluding Servers

Hao Chen, Liqing Xu

arxiv:2207.06087 v4 · 2022-07-13 · cs.IT · 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{O2O3LIA5E54ZZ4OBE4UWUAIJXE}

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	2026-07-05T04:43:03.264409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

769db5a01d27799cf1c127296a0109b911b16f06bf7a5ca0ce08fb3a76628c6e

Aliases

arxiv: 2207.06087 · arxiv_version: 2207.06087v4 · doi: 10.48550/arxiv.2207.06087 · pith_short_12: O2O3LIA5E54Z · pith_short_16: O2O3LIA5E54ZZ4OB · pith_short_8: O2O3LIA5

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/O2O3LIA5E54ZZ4OBE4UWUAIJXE \
  | 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: 769db5a01d27799cf1c127296a0109b911b16f06bf7a5ca0ce08fb3a76628c6e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24a56d8cd6c92091c3eb99d3443640ddee75b65cce6717ac3cfe0530a9600691",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2022-07-13T09:54:17Z",
    "title_canon_sha256": "bf1d8e87a0f7fd8918bfde663b560892c5930151f30efb1e4ce8e488ee160ac4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.06087",
    "kind": "arxiv",
    "version": 4
  }
}