Pith Number

pith:37LEBTGD

pith:2000:37LEBTGDPUCEYSDRVPQQ4VKHAC

not attested not anchored not stored refs pending

Topological Insights from the Chinese Rings

Adam S. Sikora, Jozef H. Przytycki

arxiv:math/0007134 v2 · 2000-07-21 · math.GT · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{37LEBTGDPUCEYSDRVPQQ4VKHAC}

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	2026-05-18T02:03:27.115943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfd640ccc37d044c4871abe10e5547008e7026dc7a4c037f975757fce4f129e0

Aliases

arxiv: math/0007134 · arxiv_version: math/0007134v2 · doi: 10.48550/arxiv.math/0007134 · pith_short_12: 37LEBTGDPUCE · pith_short_16: 37LEBTGDPUCEYSDR · pith_short_8: 37LEBTGD

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/37LEBTGDPUCEYSDRVPQQ4VKHAC \
  | 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: dfd640ccc37d044c4871abe10e5547008e7026dc7a4c037f975757fce4f129e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c372c5ef3d4a6ac2161732f6b2d4d79cba32d98cc0c408b675658c304599a34",
    "cross_cats_sorted": [
      "math.GN"
    ],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2000-07-21T18:54:49Z",
    "title_canon_sha256": "8a76bcb6154c4877f564fd04e3603ee526071435bbe3497c812bbe7b7f191920"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0007134",
    "kind": "arxiv",
    "version": 2
  }
}