Pith Number

pith:FZ2MRBYK

pith:2017:FZ2MRBYKMVUEWFCCBAQWBXZKNP

not attested not anchored not stored refs pending

Efficient constrained sensor placement for observability of linear systems

Debasish Chatterjee, Niranjan Balachandran, Priyanka Dey

arxiv:1711.08264 v4 · 2017-11-22 · math.OC · cs.SY · eess.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FZ2MRBYKMVUEWFCCBAQWBXZKNP}

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	2026-06-04T19:11:16.141687Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e74c8870a65684b1442082160df2a6bd33269b758113fd3442336e5bd1d576c

Aliases

arxiv: 1711.08264 · arxiv_version: 1711.08264v4 · doi: 10.48550/arxiv.1711.08264 · pith_short_12: FZ2MRBYKMVUE · pith_short_16: FZ2MRBYKMVUEWFCC · pith_short_8: FZ2MRBYK

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/FZ2MRBYKMVUEWFCCBAQWBXZKNP \
  | 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: 2e74c8870a65684b1442082160df2a6bd33269b758113fd3442336e5bd1d576c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df4b1f7b9fa598e106efdf4b7defbfd373cb5fe77379191dd03bf3972bf9cec5",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-11-22T13:14:59Z",
    "title_canon_sha256": "2d5244e4b505294b2c8d82dbefa7c13e342d4d3d3c15d43d45d083c901c4d7ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.08264",
    "kind": "arxiv",
    "version": 4
  }
}