Pith Number

pith:FAU7NEPP

pith:2025:FAU7NEPPJG262ILEH5THIM3SW6

not attested not anchored not stored refs pending

Efficient Implementation of RISC-V Vector Permutation Instructions

Chrysostomos Nicopoulos, George Alexakis, Giorgos Dimitrakopoulos, Vasileios Titopoulos

arxiv:2505.07112 v2 · 2025-05-11 · cs.AR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FAU7NEPPJG262ILEH5THIM3SW6}

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	2026-07-05T11:12:31.546691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2829f691ef49b5ed21643f66743372b79659c5b6075aee48124a33e09e6f9a8b

Aliases

arxiv: 2505.07112 · arxiv_version: 2505.07112v2 · doi: 10.48550/arxiv.2505.07112 · pith_short_12: FAU7NEPPJG26 · pith_short_16: FAU7NEPPJG262ILE · pith_short_8: FAU7NEPP

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/FAU7NEPPJG262ILEH5THIM3SW6 \
  | 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: 2829f691ef49b5ed21643f66743372b79659c5b6075aee48124a33e09e6f9a8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3f44ccc41dc92300dbf0cb5d403f5a797309ed1a0c349d3da17d643eeda5109",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AR",
    "submitted_at": "2025-05-11T20:45:03Z",
    "title_canon_sha256": "1c7e69514cbdb7c4cd2b45d92635c50769ffca881978353e27096fd9ec34e78d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.07112",
    "kind": "arxiv",
    "version": 2
  }
}