Pith Number

pith:M2X2HL7W

pith:2011:M2X2HL7WDQLSU4KBX6DI5C7HXI

not attested not anchored not stored refs pending

PMI-based MIMO OFDM PHY Integrated Key Exchange (P-MOPI) Scheme

Chen-Mou Cheng, Chia-han Lee, Chih-Yao Wu, Pang-Chang Lan, Ping-Cheng Yeh

arxiv:1101.4075 v1 · 2011-01-21 · 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{M2X2HL7WDQLSU4KBX6DI5C7HXI}

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	2026-05-18T02:22:50.812980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66afa3aff61c172a7141bf868e8be7ba1c1c883a99393a7eaede15c8f963fa36

Aliases

arxiv: 1101.4075 · arxiv_version: 1101.4075v1 · doi: 10.48550/arxiv.1101.4075 · pith_short_12: M2X2HL7WDQLS · pith_short_16: M2X2HL7WDQLSU4KB · pith_short_8: M2X2HL7W

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/M2X2HL7WDQLSU4KBX6DI5C7HXI \
  | 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: 66afa3aff61c172a7141bf868e8be7ba1c1c883a99393a7eaede15c8f963fa36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e17f808cd9d4fcca9d87eca32664effda2dd9532d7e65dafa76b84fbc455ff1d",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-01-21T06:55:52Z",
    "title_canon_sha256": "c721d463b5232f1d0a69d8a189a84ecd9a0e883632542bbb1b85e3895464facf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.4075",
    "kind": "arxiv",
    "version": 1
  }
}