Pith Number

pith:FL6BXLXY

pith:1997:FL6BXLXY7UGQXGODH62XSAB4HS

not attested not anchored not stored refs pending

On 2-generator subgroups of SO(3)

Charles Radin, Lorenzo Sadun

arxiv:math/9706203 v2 · 1997-06-04 · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FL6BXLXY7UGQXGODH62XSAB4HS}

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	2026-05-18T00:11:07.443617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2afc1baef8fd0d0b99c33fb579003c3ca012684638f171c9ecd5d10b73bfe1f1

Aliases

arxiv: math/9706203 · arxiv_version: math/9706203v2 · doi: 10.48550/arxiv.math/9706203 · pith_short_12: FL6BXLXY7UGQ · pith_short_16: FL6BXLXY7UGQXGOD · pith_short_8: FL6BXLXY

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/FL6BXLXY7UGQXGODH62XSAB4HS \
  | 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: 2afc1baef8fd0d0b99c33fb579003c3ca012684638f171c9ecd5d10b73bfe1f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a97047c9a2b192645133b2296ae66ea875c1fcb4d3cf6066d7195de10c9ce473",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "1997-06-04T15:57:59Z",
    "title_canon_sha256": "90d9d3621585614e6cdebc4b041f80e44db036a227276374f0564da1b3eb8040"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9706203",
    "kind": "arxiv",
    "version": 2
  }
}