Pith Number

pith:O4BCAG5S

pith:2026:O4BCAG5S5MHLFFPTR3OLPDT4CU

not attested not anchored not stored refs pending

Spatial Semantic Communication: When Semantic Transmission Meets Index Modulation

Cixiao Zhang, Dazhi He, Hanjiang Hong, Wenjun Zhang, Xinghao Guo, Yin Xu, Yiyan Wu, Zhiyong Chen

arxiv:2607.19934 v1 · 2026-07-22 · 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{O4BCAG5S5MHLFFPTR3OLPDT4CU}

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	2026-07-23T01:24:44.631087Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7702201bb2eb0eb295f38edcb78e7c1539f4786f35d8537d334fb87bb29d2eb2

Aliases

arxiv: 2607.19934 · arxiv_version: 2607.19934v1 · doi: 10.48550/arxiv.2607.19934 · pith_short_12: O4BCAG5S5MHL · pith_short_16: O4BCAG5S5MHLFFPT · pith_short_8: O4BCAG5S

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/O4BCAG5S5MHLFFPTR3OLPDT4CU \
  | 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: 7702201bb2eb0eb295f38edcb78e7c1539f4786f35d8537d334fb87bb29d2eb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58d9f8d025de84082d6922ae99bdc8d8c864b1594de54faa890cf56138cf9e51",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2026-07-22T09:05:29Z",
    "title_canon_sha256": "5838673fbe368159c5779174061d6c90996b1ad85ec62c44b96b4c0f0a875567"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.19934",
    "kind": "arxiv",
    "version": 1
  }
}