Pith Number

pith:HOS3HVHX

pith:2018:HOS3HVHXERKSM6MPENTQNJVQ6W

not attested not anchored not stored refs pending

An Information Matrix Approach for State Secrecy

Anastasios Tsiamis, George Pappas, Konstantinos Gatsis

arxiv:1809.07312 v2 · 2018-09-19 · cs.SY · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HOS3HVHXERKSM6MPENTQNJVQ6W}

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	2026-05-18T00:05:18.786547Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ba5b3d4f7245526798f236706a6b0f5a0d6a55291f288301f3157e7167feb65

Aliases

arxiv: 1809.07312 · arxiv_version: 1809.07312v2 · doi: 10.48550/arxiv.1809.07312 · pith_short_12: HOS3HVHXERKS · pith_short_16: HOS3HVHXERKSM6MP · pith_short_8: HOS3HVHX

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/HOS3HVHXERKSM6MPENTQNJVQ6W \
  | 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: 3ba5b3d4f7245526798f236706a6b0f5a0d6a55291f288301f3157e7167feb65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "331c660f36579d2291db186c2c05c84f85d595c21782f6053863fbbcb2b17e0e",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2018-09-19T17:42:04Z",
    "title_canon_sha256": "bef771b54e4edd83b3af80e5955ba12bf6fd319c5580ad69f7dc928e4e78fd77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.07312",
    "kind": "arxiv",
    "version": 2
  }
}