Pith Number

pith:G6RSRY4L

pith:2009:G6RSRY4LJSDRKSQ3HIGG6RFB3N

not attested not anchored not stored refs pending

From Golden Spirals to Constant Slope Surfaces

Marian Ioan Munteanu

arxiv:0903.1348 v1 · 2009-03-07 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G6RSRY4LJSDRKSQ3HIGG6RFB3N}

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	2026-05-18T04:19:52.207104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37a328e38b4c87154a1b3a0c6f44a1db6bd19fd82558993e6f11c4b3178fc313

Aliases

arxiv: 0903.1348 · arxiv_version: 0903.1348v1 · doi: 10.48550/arxiv.0903.1348 · pith_short_12: G6RSRY4LJSDR · pith_short_16: G6RSRY4LJSDRKSQ3 · pith_short_8: G6RSRY4L

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/G6RSRY4LJSDRKSQ3HIGG6RFB3N \
  | 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: 37a328e38b4c87154a1b3a0c6f44a1db6bd19fd82558993e6f11c4b3178fc313

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4bca24ec815075250465635de1bf6c32445cb2bfa3c6888b627adf1c27ec2c3e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-03-07T15:31:00Z",
    "title_canon_sha256": "b888c59cb8fa5132a86ba3334617f11e746f9ae0d9473f8cd977e6ad11f2327a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.1348",
    "kind": "arxiv",
    "version": 1
  }
}