Pith Number

pith:DHH45LK7

pith:2018:DHH45LK7FS4NLVXE4DGA6GSM6E

not attested not anchored not stored refs pending

Direction Finding Based on Multi-Step Knowledge-Aided Iterative Conjugate Gradient Algorithms

R. C. de Lamare, S. Pinto

arxiv:1812.07505 v1 · 2018-12-16 · eess.SP · cs.IT · cs.LG · cs.SD · eess.AS · math.IT · math.OC · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DHH45LK7FS4NLVXE4DGA6GSM6E}

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	2026-05-17T23:58:00.308505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19cfcead5f2cb8d5d6e4e0cc0f1a4cf13f6a5c3098af416736e160dd80ccf3d3

Aliases

arxiv: 1812.07505 · arxiv_version: 1812.07505v1 · doi: 10.48550/arxiv.1812.07505 · pith_short_12: DHH45LK7FS4N · pith_short_16: DHH45LK7FS4NLVXE · pith_short_8: DHH45LK7

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/DHH45LK7FS4NLVXE4DGA6GSM6E \
  | 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: 19cfcead5f2cb8d5d6e4e0cc0f1a4cf13f6a5c3098af416736e160dd80ccf3d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84b461ba99576201e698bacd0a4b80432012aaf02d9122e2e6133424c02792e5",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.LG",
      "cs.SD",
      "eess.AS",
      "math.IT",
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-12-16T00:25:58Z",
    "title_canon_sha256": "56e699d77aa0cea24661e3fd1a688b93a200ba8c2c32c2db1cea1e86948459e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.07505",
    "kind": "arxiv",
    "version": 1
  }
}