Pith Number

pith:KWFPQJ5P

pith:2018:KWFPQJ5PHDI2UKUTXFQXVFUROD

not attested not anchored not stored refs pending

Privacy in Index Coding: Improved Bounds and Coding Schemes

Christina Fragouli, Linqi Song, Martina Cardone, Mohammed Karmoose

arxiv:1801.03892 v1 · 2018-01-11 · 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{KWFPQJ5PHDI2UKUTXFQXVFUROD}

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	2026-05-18T00:03:24.748636Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

558af827af38d1aa2a93b9617a969170ee79cd7a5006012328eebefdb0104277

Aliases

arxiv: 1801.03892 · arxiv_version: 1801.03892v1 · doi: 10.48550/arxiv.1801.03892 · pith_short_12: KWFPQJ5PHDI2 · pith_short_16: KWFPQJ5PHDI2UKUT · pith_short_8: KWFPQJ5P

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/KWFPQJ5PHDI2UKUTXFQXVFUROD \
  | 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: 558af827af38d1aa2a93b9617a969170ee79cd7a5006012328eebefdb0104277

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7ef7fdb638153d8dac54ac766bb6a59c67483d91ce9890f9311ae9f8f68827a",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-01-11T17:37:59Z",
    "title_canon_sha256": "46c196702ae8e04b40e24795401c53730c0e86ae5fd01e8ebf414a94710a4bdd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.03892",
    "kind": "arxiv",
    "version": 1
  }
}