Pith Number

pith:4K7W6EZ5

pith:2013:4K7W6EZ5YS2EPVYC7XBXSWNKXM

not attested not anchored not stored refs pending

An Insight to Covert Channels

Amarpreet Singh, Nitish Salwan, Sandeep Singh, Suket Arora

arxiv:1306.2252 v1 · 2013-06-10 · cs.CR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4K7W6EZ5YS2EPVYC7XBXSWNKXM}

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	2026-05-18T03:21:21.988475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2bf6f133dc4b447d702fdc37959aabb226f5e831da9b9e5894004001aa024dc

Aliases

arxiv: 1306.2252 · arxiv_version: 1306.2252v1 · doi: 10.48550/arxiv.1306.2252 · pith_short_12: 4K7W6EZ5YS2E · pith_short_16: 4K7W6EZ5YS2EPVYC · pith_short_8: 4K7W6EZ5

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/4K7W6EZ5YS2EPVYC7XBXSWNKXM \
  | 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: e2bf6f133dc4b447d702fdc37959aabb226f5e831da9b9e5894004001aa024dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fffd4b53e986f644b421120d2c3937cd66c4a94d402773e5766a86458be6e29a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2013-06-10T17:30:07Z",
    "title_canon_sha256": "bea2e4fb142ad027097e8d18af4481fe87fe8d94f6ba76cc349ea983875a8b01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.2252",
    "kind": "arxiv",
    "version": 1
  }
}