Pith Number

pith:D2G73OY5

pith:2012:D2G73OY5HRT555HK2IZ5BZ7HS7

not attested not anchored not stored refs pending

Matrix Design for Optimal Sensing

Hema Kumari Achanta, Soura Dasgupta, Weiyu Xu

arxiv:1212.3359 v1 · 2012-12-13 · cs.IT · 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{D2G73OY5HRT555HK2IZ5BZ7HS7}

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	2026-05-18T03:38:24.883506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1e8dfdbb1d3c67def4ead233d0e7e797e45b025da77c964edd4725dc5ac76358

Aliases

arxiv: 1212.3359 · arxiv_version: 1212.3359v1 · doi: 10.48550/arxiv.1212.3359 · pith_short_12: D2G73OY5HRT5 · pith_short_16: D2G73OY5HRT555HK · pith_short_8: D2G73OY5

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/D2G73OY5HRT555HK2IZ5BZ7HS7 \
  | 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: 1e8dfdbb1d3c67def4ead233d0e7e797e45b025da77c964edd4725dc5ac76358

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5298f270fefaf2ebcdaa02d34e537bc378b822cf3033d6e55b4d445af99e891",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-12-13T22:30:40Z",
    "title_canon_sha256": "1f671519059cccab9e933dbcc23d4f48a897cbc989b2370933d2b4c348edb076"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.3359",
    "kind": "arxiv",
    "version": 1
  }
}