Pith Number

pith:FROB226T

pith:2020:FROB226T2KCOFEBJNDWKDQKMKE

not attested not anchored not stored refs pending

Federated Over-Air Subspace Tracking from Incomplete and Corrupted Data

Aditya Ramamoorthy, Namrata Vaswani, Praneeth Narayanamurthy

arxiv:2002.12873 v4 · 2020-02-28 · cs.LG · cs.IT · cs.NA · math.IT · math.NA · 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{FROB226T2KCOFEBJNDWKDQKMKE}

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	2026-07-05T04:36:08.271513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c5c1d6bd3d284e2902968eca1c14c5121b1851b0e980e17120dddbf456d7888

Aliases

arxiv: 2002.12873 · arxiv_version: 2002.12873v4 · doi: 10.48550/arxiv.2002.12873 · pith_short_12: FROB226T2KCO · pith_short_16: FROB226T2KCOFEBJ · pith_short_8: FROB226T

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/FROB226T2KCOFEBJNDWKDQKMKE \
  | 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: 2c5c1d6bd3d284e2902968eca1c14c5121b1851b0e980e17120dddbf456d7888

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7223e81605e7cba06d1cca695a95a979b799855bc4ffd28997ad846ce6f9a173",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.NA",
      "math.IT",
      "math.NA",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-02-28T17:17:01Z",
    "title_canon_sha256": "b275adf4ce0a50d10f47f14db92bc72f2e9bee9bd32f2a3e07f7a0dae431eabf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.12873",
    "kind": "arxiv",
    "version": 4
  }
}