Pith Number

pith:4TZN2PNR

pith:2018:4TZN2PNRH4VEOXLGUZSJXQJJC2

not attested not anchored not stored refs pending

Time-universal data compression and prediction

Boris Ryabko

arxiv:1809.02978 v1 · 2018-09-09 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4TZN2PNRH4VEOXLGUZSJXQJJC2}

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	2026-05-18T00:06:10.454227Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4f2dd3db13f2a475d66a6649bc12916adc96bafcb6d25f8689ad599f063e06f

Aliases

arxiv: 1809.02978 · arxiv_version: 1809.02978v1 · doi: 10.48550/arxiv.1809.02978 · pith_short_12: 4TZN2PNRH4VE · pith_short_16: 4TZN2PNRH4VEOXLG · pith_short_8: 4TZN2PNR

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/4TZN2PNRH4VEOXLGUZSJXQJJC2 \
  | 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: e4f2dd3db13f2a475d66a6649bc12916adc96bafcb6d25f8689ad599f063e06f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2edf8b01048f49a5263f5e86aada45e143085c7115297defc922ae534be83f9",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-09-09T14:22:14Z",
    "title_canon_sha256": "f331928de4241e471bb53c658c8122b1b6f57d910556997ba3d4da22f63c0f4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.02978",
    "kind": "arxiv",
    "version": 1
  }
}