Pith Number

pith:5T3DBSAB

pith:2020:5T3DBSABATFAYA7MIB7QPZRZEL

not attested not anchored not stored refs pending

Efficient search of optimal Flower Constellations

David Arnas, Mart\'in Avenda\~no, Miles Lifson, Richard Linares

arxiv:2003.11970 v1 · 2020-03-25 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5T3DBSABATFAYA7MIB7QPZRZEL}

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	2026-07-05T02:02:20.070938Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ecf630c80104ca0c03ec407f07e63922e8b969f7fdb8015734113b47373e48d0

Aliases

arxiv: 2003.11970 · arxiv_version: 2003.11970v1 · doi: 10.48550/arxiv.2003.11970 · pith_short_12: 5T3DBSABATFA · pith_short_16: 5T3DBSABATFAYA7M · pith_short_8: 5T3DBSAB

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/5T3DBSABATFAYA7MIB7QPZRZEL \
  | 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: ecf630c80104ca0c03ec407f07e63922e8b969f7fdb8015734113b47373e48d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40a926c01d8683f1407025c70c5dab06970509b812b20d02265796cce69516c3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-03-25T15:41:43Z",
    "title_canon_sha256": "ef4ed233e03e952dac3da66e71b2ac3777957b82fb943d4d273f264cdbf2435f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.11970",
    "kind": "arxiv",
    "version": 1
  }
}