Pith Number

pith:CEMR5WBK

pith:2011:CEMR5WBKVGDAXN4VVXRRGA65M7

not attested not anchored not stored refs pending

Using Transcoding for Hidden Communication in IP Telephony

Krzysztof Szczypiorski, Pawel Szaga, Wojciech Mazurczyk

arxiv:1111.1250 v1 · 2011-11-04 · cs.CR · cs.MM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CEMR5WBKVGDAXN4VVXRRGA65M7}

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	2026-05-18T04:09:26.597256Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11191ed82aa9860bb795ade31303dd67e0c93c17eec06c49e1a2169cdbf64c5f

Aliases

arxiv: 1111.1250 · arxiv_version: 1111.1250v1 · doi: 10.48550/arxiv.1111.1250 · pith_short_12: CEMR5WBKVGDA · pith_short_16: CEMR5WBKVGDAXN4V · pith_short_8: CEMR5WBK

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/CEMR5WBKVGDAXN4VVXRRGA65M7 \
  | 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: 11191ed82aa9860bb795ade31303dd67e0c93c17eec06c49e1a2169cdbf64c5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fefff0f322fc4d33117ff280751ca33aaae48489f1031c0f0a1b77dcc5a380b3",
    "cross_cats_sorted": [
      "cs.MM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2011-11-04T21:07:49Z",
    "title_canon_sha256": "03a6a140f4f05930328b9eae1dc7f35e263ed83f2d0b0c1755e44641713985fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.1250",
    "kind": "arxiv",
    "version": 1
  }
}