Pith Number

pith:AZ2HU7GK

pith:2018:AZ2HU7GKQ6WD4UGJZGB26FCQDD

not attested not anchored not stored refs pending

Local Reconstruction Codes: A Class of MDS-PIR Capacity-Achieving Codes

Alexandre Graell i Amat, Eirik Rosnes, Hsuan-Yin Lin, Siddhartha Kumar

arxiv:1809.06648 v1 · 2018-09-18 · 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{AZ2HU7GKQ6WD4UGJZGB26FCQDD}

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	2026-05-18T00:05:25.075474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06747a7cca87ac3e50c9c983af145018d9df5bb58a341e8591a443b89428081d

Aliases

arxiv: 1809.06648 · arxiv_version: 1809.06648v1 · doi: 10.48550/arxiv.1809.06648 · pith_short_12: AZ2HU7GKQ6WD · pith_short_16: AZ2HU7GKQ6WD4UGJ · pith_short_8: AZ2HU7GK

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/AZ2HU7GKQ6WD4UGJZGB26FCQDD \
  | 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: 06747a7cca87ac3e50c9c983af145018d9df5bb58a341e8591a443b89428081d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61b709bec9291e4448c976961b42cf5ba2d0a0d5fc5dadd8155d3356fa46bd8c",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-09-18T11:25:18Z",
    "title_canon_sha256": "a0296e94c893757338ec702025f0b79c883e578f13dd43297a6105b9692bad9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.06648",
    "kind": "arxiv",
    "version": 1
  }
}