Pith Number

pith:QIUTXG2S

pith:2018:QIUTXG2SD7YO65FMSPHBIHP6V2

not attested not anchored not stored refs pending

On the Capacity Region for Secure Index Coding

Badri N. Vellambi, Parastoo Sadeghi, Young-Han Kim, Yuxin Liu

arxiv:1809.03615 v1 · 2018-09-10 · 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{QIUTXG2SD7YO65FMSPHBIHP6V2}

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	2026-05-18T00:06:00.324436Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82293b9b521ff0ef74ac93ce141dfeae8d04e3b6c54bf4fc40fa269888071705

Aliases

arxiv: 1809.03615 · arxiv_version: 1809.03615v1 · doi: 10.48550/arxiv.1809.03615 · pith_short_12: QIUTXG2SD7YO · pith_short_16: QIUTXG2SD7YO65FM · pith_short_8: QIUTXG2S

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/QIUTXG2SD7YO65FMSPHBIHP6V2 \
  | 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: 82293b9b521ff0ef74ac93ce141dfeae8d04e3b6c54bf4fc40fa269888071705

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d72d8449e63280bc9772ba1868d27353e632d3f5d45be49a344facce85ba4839",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-09-10T22:13:30Z",
    "title_canon_sha256": "65db5fb5db1892fc2d9bcfb22ca9fd88fc165495245020d2c836017197e8df41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.03615",
    "kind": "arxiv",
    "version": 1
  }
}