Pith Number

pith:XDWFHOUR

pith:2013:XDWFHOUR2MKOFJPIRLCSCYX7RH

not attested not anchored not stored refs pending

Two-Way Training for Discriminatory Channel Estimation in Wireless MIMO Systems

Chao-Wei Huang, Tsung-Hui Chang, Xiangyun Zhou, Y.-W. Peter Hong

arxiv:1301.4625 v1 · 2013-01-20 · 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{XDWFHOUR2MKOFJPIRLCSCYX7RH}

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	2026-05-18T01:52:05.489745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8ec53ba91d314e2a5e88ac52162ff89ee79d7802fd1f903d9b3979de055d4f7

Aliases

arxiv: 1301.4625 · arxiv_version: 1301.4625v1 · doi: 10.48550/arxiv.1301.4625 · pith_short_12: XDWFHOUR2MKO · pith_short_16: XDWFHOUR2MKOFJPI · pith_short_8: XDWFHOUR

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/XDWFHOUR2MKOFJPIRLCSCYX7RH \
  | 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: b8ec53ba91d314e2a5e88ac52162ff89ee79d7802fd1f903d9b3979de055d4f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ebd7ce2eab3a4423162c37760f2f216c9c2f504ac6444ca3b6ca79abfb71875",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-01-20T04:14:06Z",
    "title_canon_sha256": "d58ca399fd126ad283aa4c99d9d4914668c9215e5b18eaa8c48852f15eb8dc62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4625",
    "kind": "arxiv",
    "version": 1
  }
}