Pith Number

pith:7SKNAHSD

pith:2017:7SKNAHSD27DZYUP66Y5INYVZE7

not attested not anchored not stored refs pending

Covert Communication with Channel-State Information at the Transmitter

Ashish Khisti, Gregory W. Wornell, Ligong Wang, Si-Hyeon Lee

arxiv:1708.02501 v1 · 2017-08-08 · 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{7SKNAHSD27DZYUP66Y5INYVZE7}

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	2026-05-18T00:38:24.080502Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc94d01e43d7c79c51fef63a86e2b927fbb6a068b1146af03df492cb2abb2de0

Aliases

arxiv: 1708.02501 · arxiv_version: 1708.02501v1 · doi: 10.48550/arxiv.1708.02501 · pith_short_12: 7SKNAHSD27DZ · pith_short_16: 7SKNAHSD27DZYUP6 · pith_short_8: 7SKNAHSD

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/7SKNAHSD27DZYUP66Y5INYVZE7 \
  | 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: fc94d01e43d7c79c51fef63a86e2b927fbb6a068b1146af03df492cb2abb2de0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "998d5492cd38bc1e8a454d71081627c4b79fa9c82c459caa0f07e4be82bc1db4",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-08-08T14:23:45Z",
    "title_canon_sha256": "749b3012f8fd73c62d24fc82526893cbca2e8a9cc78876698e897d44fe98f26c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.02501",
    "kind": "arxiv",
    "version": 1
  }
}