Pith Number

pith:CBOYN4NO

pith:2013:CBOYN4NOCRICH7CSK6F4UEMRU4

not attested not anchored not stored refs pending

Punctured Trellis-Coded Modulation

Andreas Schenk, Fabian Schuh, Johannes B. Huber

arxiv:1301.4050 v1 · 2013-01-17 · 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{CBOYN4NOCRICH7CSK6F4UEMRU4}

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	2026-05-18T03:36:14.509196Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

105d86f1ae145023fc52578bca1191a724f021cffa4a6c1ddba89cc5d134c533

Aliases

arxiv: 1301.4050 · arxiv_version: 1301.4050v1 · doi: 10.48550/arxiv.1301.4050 · pith_short_12: CBOYN4NOCRIC · pith_short_16: CBOYN4NOCRICH7CS · pith_short_8: CBOYN4NO

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/CBOYN4NOCRICH7CSK6F4UEMRU4 \
  | 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: 105d86f1ae145023fc52578bca1191a724f021cffa4a6c1ddba89cc5d134c533

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58dbba3b52e461ed63ca65c0cf6d672c94d1177524efb698958fc1822e42c970",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-01-17T11:22:15Z",
    "title_canon_sha256": "12ede8581fa5e73f52529ca43cf89e9457f0d1f8294b4516db3315d662081a00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4050",
    "kind": "arxiv",
    "version": 1
  }
}