Pith Number

pith:HFCY4A4T

pith:2015:HFCY4A4TJJYWEOY5GCUWX4XTUE

not attested not anchored not stored refs pending

$2^n-$rational maps

Maciej Nieszporski, Pantelis Damianou, Pavlos Kassotakis

arxiv:1512.00771 v1 · 2015-12-02 · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HFCY4A4TJJYWEOY5GCUWX4XTUE}

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	2026-05-18T01:25:25.139159Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39458e03934a71623b1d30a96bf2f3a110a4e8c134397cc511ad7d38822e0f76

Aliases

arxiv: 1512.00771 · arxiv_version: 1512.00771v1 · doi: 10.48550/arxiv.1512.00771 · pith_short_12: HFCY4A4TJJYW · pith_short_16: HFCY4A4TJJYWEOY5 · pith_short_8: HFCY4A4T

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/HFCY4A4TJJYWEOY5GCUWX4XTUE \
  | 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: 39458e03934a71623b1d30a96bf2f3a110a4e8c134397cc511ad7d38822e0f76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4ca8cb2dea64415fa262b673f235c233995d3ad9287e4be576166998d953506",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2015-12-02T16:49:42Z",
    "title_canon_sha256": "4f698bf21fb0100887696bd0abef62fd07342b7140ab6e13ee84467254afd23f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.00771",
    "kind": "arxiv",
    "version": 1
  }
}