Pith Number

pith:2V4PHPZS

pith:2017:2V4PHPZS2NMLXPCBEI7Q5ESJVL

not attested not anchored not stored refs pending

Symbol-level and Multicast Precoding for Multiuser Multiantenna Downlink: A Survey, Classification and Challenges

Ashkan Kalantari, Bj\"orn Ottersten, Christos Tsinos, Danilo Spano, Dimitrios Christopoulos, Maha Alodeh, Symeon Chatzinotas

arxiv:1703.03617 v1 · 2017-03-10 · 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{2V4PHPZS2NMLXPCBEI7Q5ESJVL}

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	2026-05-18T00:48:58.523776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d578f3bf32d358bbbc41223f0e9249aad6748cdc0df0d57d95076ca55194100d

Aliases

arxiv: 1703.03617 · arxiv_version: 1703.03617v1 · doi: 10.48550/arxiv.1703.03617 · pith_short_12: 2V4PHPZS2NML · pith_short_16: 2V4PHPZS2NMLXPCB · pith_short_8: 2V4PHPZS

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/2V4PHPZS2NMLXPCBEI7Q5ESJVL \
  | 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: d578f3bf32d358bbbc41223f0e9249aad6748cdc0df0d57d95076ca55194100d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "546be3649f35c062cc9c5218530c1661574390ef617e5ef4a27940a991d025f3",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-03-10T10:48:48Z",
    "title_canon_sha256": "4f94759b72356cf54618cc615f18f41400ba20b2d9ca45f9018b0d77f60c8546"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.03617",
    "kind": "arxiv",
    "version": 1
  }
}