Pith Number

pith:433QF2MD

pith:2015:433QF2MDUULDNBSVBKXU7XZIL5

not attested not anchored not stored refs pending

Joint Source-Channel Secrecy Using Hybrid Coding

Eva C. Song, H. Vincent Poor, Paul Cuff

arxiv:1504.05538 v2 · 2015-04-21 · 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{433QF2MDUULDNBSVBKXU7XZIL5}

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	2026-05-18T01:40:58.412531Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6f702e983a5163686550aaf4fdf285f78b6143c16f677a670a95b3cdf49142f

Aliases

arxiv: 1504.05538 · arxiv_version: 1504.05538v2 · doi: 10.48550/arxiv.1504.05538 · pith_short_12: 433QF2MDUULD · pith_short_16: 433QF2MDUULDNBSV · pith_short_8: 433QF2MD

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/433QF2MDUULDNBSVBKXU7XZIL5 \
  | 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: e6f702e983a5163686550aaf4fdf285f78b6143c16f677a670a95b3cdf49142f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1fe073a764738cf4d0f15d3c87bfa498f973e43ce45325f895108a72df48945",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-04-21T18:33:08Z",
    "title_canon_sha256": "a6d9da22aeaf86991f199967e8bea2886195a5e7b0a7554700622811dd960674"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05538",
    "kind": "arxiv",
    "version": 2
  }
}