Pith Number

pith:7F6MXFYU

pith:2017:7F6MXFYUIJMFTOZIDVQ366P3HD

not attested not anchored not stored refs pending

Polar codes with a stepped boundary

Ilya Dumer

arxiv:1702.04886 v1 · 2017-02-16 · 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{7F6MXFYUIJMFTOZIDVQ366P3HD}

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	2026-05-18T00:50:36.889665Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f97ccb9714425859bb281d61bf79fb38cef5720a4363574d5e5c561efa771055

Aliases

arxiv: 1702.04886 · arxiv_version: 1702.04886v1 · doi: 10.48550/arxiv.1702.04886 · pith_short_12: 7F6MXFYUIJMF · pith_short_16: 7F6MXFYUIJMFTOZI · pith_short_8: 7F6MXFYU

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/7F6MXFYUIJMFTOZIDVQ366P3HD \
  | 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: f97ccb9714425859bb281d61bf79fb38cef5720a4363574d5e5c561efa771055

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cca09b362e8e7c18510d39fd495566096992e3f8acb59ff4b23368da51203967",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-02-16T08:28:05Z",
    "title_canon_sha256": "fd625d14ccd2435c5c6bf2ab59b6c6a241dc2e755b43f3d5ca94c9947928c91b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.04886",
    "kind": "arxiv",
    "version": 1
  }
}