Pith Number

pith:OZ6UL7SR

pith:2013:OZ6UL7SRK23WGEBT2HIG5WKPSK

not attested not anchored not stored refs pending

On geodesics of phyllotaxis

Roland Bacher (IF)

arxiv:1301.7568 v2 · 2013-01-31 · math.NT · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OZ6UL7SRK23WGEBT2HIG5WKPSK}

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	2026-05-18T03:26:08.599600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

767d45fe5156b7631033d1d06ed94f928f026f1caba5f97f8aa1bc7004286d0e

Aliases

arxiv: 1301.7568 · arxiv_version: 1301.7568v2 · doi: 10.48550/arxiv.1301.7568 · pith_short_12: OZ6UL7SRK23W · pith_short_16: OZ6UL7SRK23WGEBT · pith_short_8: OZ6UL7SR

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/OZ6UL7SRK23WGEBT2HIG5WKPSK \
  | 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: 767d45fe5156b7631033d1d06ed94f928f026f1caba5f97f8aa1bc7004286d0e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2c51b0cf11fb6fcb16f276cee357072e5b12568730ce48ad5b1becfe2bc27b2",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2013-01-31T10:02:51Z",
    "title_canon_sha256": "d11329cfda300b39bf8ba9cba41153c52fe554ec68276b34b4d65f69dab90dbc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.7568",
    "kind": "arxiv",
    "version": 2
  }
}