Pith Number

pith:EOYNZRJQ

pith:2015:EOYNZRJQJ5J3HH73FVHRSSED3R

not attested not anchored not stored refs pending

Leaders do not look back, or do they?

Alexander N. Gorban, Cees van Leeuwen, Erik Steur, Ivan Tyukin, Nick Jarman

arxiv:1505.01440 v2 · 2015-05-06 · math.DS · nlin.CD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EOYNZRJQJ5J3HH73FVHRSSED3R}

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	2026-05-18T02:03:54.581767Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23b0dcc5304f53b39ffb2d4f194883dc539fb98290a3a79189a6d83ae81d1060

Aliases

arxiv: 1505.01440 · arxiv_version: 1505.01440v2 · doi: 10.48550/arxiv.1505.01440 · pith_short_12: EOYNZRJQJ5J3 · pith_short_16: EOYNZRJQJ5J3HH73 · pith_short_8: EOYNZRJQ

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/EOYNZRJQJ5J3HH73FVHRSSED3R \
  | 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: 23b0dcc5304f53b39ffb2d4f194883dc539fb98290a3a79189a6d83ae81d1060

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c33ec45b466d88605cf80eac3727314880a546169b2871ae3a8293888907fbf5",
    "cross_cats_sorted": [
      "nlin.CD"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-05-06T17:36:31Z",
    "title_canon_sha256": "401bbe8dba85a265504875344cc38112f5fbd8c2f42e9cea57aa71c46d6ec8ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.01440",
    "kind": "arxiv",
    "version": 2
  }
}