Pith Number

pith:S34CBOPG

pith:2019:S34CBOPGDOBVKXVLFZWKZPWN22

not attested not anchored not stored refs pending

Polarization-ring-switching for nonlinearity-tolerant geometrically-shaped four-dimensional formats maximizing generalized mutual information

Alex Alvarado, Bin Chen, Chigo Okonkwo, Hartmut Hafermann

arxiv:1901.06878 v2 · 2019-01-21 · eess.SP · 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{S34CBOPGDOBVKXVLFZWKZPWN22}

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	2026-05-17T23:44:02.529445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96f820b9e61b83555eab2e6cacbecdd6b67701fa9b048ea53e924a9d73c85604

Aliases

arxiv: 1901.06878 · arxiv_version: 1901.06878v2 · doi: 10.48550/arxiv.1901.06878 · pith_short_12: S34CBOPGDOBV · pith_short_16: S34CBOPGDOBVKXVL · pith_short_8: S34CBOPG

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/S34CBOPGDOBVKXVLFZWKZPWN22 \
  | 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: 96f820b9e61b83555eab2e6cacbecdd6b67701fa9b048ea53e924a9d73c85604

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "775b9e1c172290ede39e6947d5d16bb0aa445d207c88fd0ef1e48ee63cf090dc",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2019-01-21T11:10:58Z",
    "title_canon_sha256": "c39435cd7380841b953d18ee518f83d69e90d2b575231abbe5f8113e179b2725"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.06878",
    "kind": "arxiv",
    "version": 2
  }
}