Pith Number

pith:M2GQPKVM

pith:2017:M2GQPKVMMAJFRBZAGSZY4ZIXYA

not attested not anchored not stored refs pending

Polar Coding for Parallel Gaussian Channel

Bin Li, David Tse, Kai Chen

arxiv:1705.07275 v1 · 2017-05-20 · 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{M2GQPKVMMAJFRBZAGSZY4ZIXYA}

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	2026-05-18T00:44:06.101235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

668d07aaac601258872034b38e6517c00044ec122a15c7c934414b77e6337ab2

Aliases

arxiv: 1705.07275 · arxiv_version: 1705.07275v1 · doi: 10.48550/arxiv.1705.07275 · pith_short_12: M2GQPKVMMAJF · pith_short_16: M2GQPKVMMAJFRBZA · pith_short_8: M2GQPKVM

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/M2GQPKVMMAJFRBZAGSZY4ZIXYA \
  | 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: 668d07aaac601258872034b38e6517c00044ec122a15c7c934414b77e6337ab2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21e0bddf1972f871570b514b392e02afcfdc97e26b7d1ff03e7f8f27562f9199",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-05-20T07:48:10Z",
    "title_canon_sha256": "077cf66ec4a2e6fcb019ca725f382d3a0e2f555c3ea365fc746c1adf6bcef17a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.07275",
    "kind": "arxiv",
    "version": 1
  }
}