Pith Number

pith:CXDNMVHG

pith:2025:CXDNMVHGFKPKJK7IYRMRFEJSZK

not attested not anchored not stored refs pending

Downlink Multiuser Communications Relying on Flexible Intelligent Metasurfaces

Chau Yuen, H. Vincent Poor, Jiancheng An, Lajos Hanzo, Marco Di Renzo, M\'erouane Debbah

arxiv:2502.16472 v1 · 2025-02-23 · cs.IT · eess.SP · 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{CXDNMVHGFKPKJK7IYRMRFEJSZK}

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	2026-07-05T10:18:53.959501Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15c6d654e62a9ea4abe8c459129132caa3ecd1bfb4a6f3a8128114fcda24c759

Aliases

arxiv: 2502.16472 · arxiv_version: 2502.16472v1 · doi: 10.48550/arxiv.2502.16472 · pith_short_12: CXDNMVHGFKPK · pith_short_16: CXDNMVHGFKPKJK7I · pith_short_8: CXDNMVHG

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/CXDNMVHGFKPKJK7IYRMRFEJSZK \
  | 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: 15c6d654e62a9ea4abe8c459129132caa3ecd1bfb4a6f3a8128114fcda24c759

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5575f286b11e9d1bf53be75675142cf5c2e767902b728e5f4429ae5e35719e62",
    "cross_cats_sorted": [
      "eess.SP",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2025-02-23T07:16:23Z",
    "title_canon_sha256": "4f2d94cb7620c137ae309d6968ea9222dcfb742d4d10e794be6ce4d4195fcaaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.16472",
    "kind": "arxiv",
    "version": 1
  }
}