Pith Number

pith:DIJIEDZ5

pith:2017:DIJIEDZ5SBEVACBQVBA7EJQ7NK

not attested not anchored not stored refs pending

On methods to determine bounds on the Q-factor for a given directivity

B.L.G. Jonsson, Fabien Ferrero, Lei Wang, Leonardo Lizzi, Shuai Shi

arxiv:1702.03234 v3 · 2017-02-10 · physics.class-ph · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DIJIEDZ5SBEVACBQVBA7EJQ7NK}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:31:51.532389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a12820f3d9049500830a841f2261f6aa55132a47097939a18c2995d4e9fc8a9

Aliases

arxiv: 1702.03234 · arxiv_version: 1702.03234v3 · doi: 10.48550/arxiv.1702.03234 · pith_short_12: DIJIEDZ5SBEV · pith_short_16: DIJIEDZ5SBEVACBQ · pith_short_8: DIJIEDZ5

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/DIJIEDZ5SBEVACBQVBA7EJQ7NK \
  | 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: 1a12820f3d9049500830a841f2261f6aa55132a47097939a18c2995d4e9fc8a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d451068f36251de4db41d85bc076dd3ded818194f5228688b8329b0859a7eb7c",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2017-02-10T16:13:07Z",
    "title_canon_sha256": "11c0f3f78f7380961550fce25bbbbc6286d3c342bdd5d3fc81be6f876346722b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03234",
    "kind": "arxiv",
    "version": 3
  }
}