Pith Number

pith:D3OL7YMC

pith:2019:D3OL7YMC4CULGLXIROZAEKSDJU

not attested not anchored not stored refs pending

Data-based guarantees of set invariance properties

Andrea Bisoffi, Claudio De Persis, Pietro Tesi

arxiv:1911.12293 v1 · 2019-11-27 · eess.SY · cs.SY · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D3OL7YMC4CULGLXIROZAEKSDJU}

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	2026-07-05T02:51:05.998539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1edcbfe182e0a8b32ee88bb2022a434d090899de4c44875e74336e2ab44b4302

Aliases

arxiv: 1911.12293 · arxiv_version: 1911.12293v1 · doi: 10.48550/arxiv.1911.12293 · pith_short_12: D3OL7YMC4CUL · pith_short_16: D3OL7YMC4CULGLXI · pith_short_8: D3OL7YMC

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/D3OL7YMC4CULGLXIROZAEKSDJU \
  | 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: 1edcbfe182e0a8b32ee88bb2022a434d090899de4c44875e74336e2ab44b4302

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ea6a861e63953bd5978718d254abccf4dea46f1b66ec2af170b0689257e4793",
    "cross_cats_sorted": [
      "cs.SY",
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2019-11-27T17:15:58Z",
    "title_canon_sha256": "9d536258bceaa845c92b01aed10d85229a167076edb6e5aa8b01612e0d8ef7ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.12293",
    "kind": "arxiv",
    "version": 1
  }
}