Pith Number

pith:NBVARUWG

pith:2015:NBVARUWGKKQMKLHH2CVIJ3THLX

not attested not anchored not stored refs pending

Predicting the outcomes of every process for which an asymptotically accurate stationary predictor exists is impossible

Boris Ryabko, Daniil Ryabko

arxiv:1509.07776 v1 · 2015-09-25 · cs.IT · math.IT · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NBVARUWGKKQMKLHH2CVIJ3THLX}

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	2026-05-18T01:32:01.970227Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

686a08d2c652a0c52ce7d0aa84ee675df74be7f978c2d7e53115d5697ddcad52

Aliases

arxiv: 1509.07776 · arxiv_version: 1509.07776v1 · doi: 10.48550/arxiv.1509.07776 · pith_short_12: NBVARUWGKKQM · pith_short_16: NBVARUWGKKQMKLHH · pith_short_8: NBVARUWG

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/NBVARUWGKKQMKLHH2CVIJ3THLX \
  | 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: 686a08d2c652a0c52ce7d0aa84ee675df74be7f978c2d7e53115d5697ddcad52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "275c1522e9831d9e2cd359b70ad802bebe73424fa5a7574fbd0e6d91a1bfd373",
    "cross_cats_sorted": [
      "math.IT",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-09-25T16:23:26Z",
    "title_canon_sha256": "3ee4b45fa543a14a0d6ca3e0cba306293e2981b5d82eb6e3e7e197433c00a1da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.07776",
    "kind": "arxiv",
    "version": 1
  }
}