Pith Number

pith:UJ4D53VI

pith:2018:UJ4D53VILAM6N5S2Z7YG4WQNPW

not attested not anchored not stored refs pending

Space-division multiplexing for fiber-wireless communications

David Barrera, Ivana Gasulla, Javier Hervas, Salvador Sales, Sergi Garcia

arxiv:1810.12157 v1 · 2018-10-29 · eess.SP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UJ4D53VILAM6N5S2Z7YG4WQNPW}

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	2026-05-18T00:02:04.100217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2783eeea85819e6f65acff06e5a0d7d899057202692279f9999cb66e5a6225d

Aliases

arxiv: 1810.12157 · arxiv_version: 1810.12157v1 · doi: 10.48550/arxiv.1810.12157 · pith_short_12: UJ4D53VILAM6 · pith_short_16: UJ4D53VILAM6N5S2 · pith_short_8: UJ4D53VI

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/UJ4D53VILAM6N5S2Z7YG4WQNPW \
  | 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: a2783eeea85819e6f65acff06e5a0d7d899057202692279f9999cb66e5a6225d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0c61af78153e4a7778da6002350437f28aeaa30301212e2e8ebd6d00cf6deb5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-10-29T14:37:46Z",
    "title_canon_sha256": "9870ef43bec836ef88605acb0d5b1088900b81e73df3fb3772c543098893f9e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.12157",
    "kind": "arxiv",
    "version": 1
  }
}