Pith Number

pith:N5E5TIQM

pith:2007:N5E5TIQMGZIITW3DYICQIEHUY6

not attested not anchored not stored refs pending

On the set of complex points of a 2-sphere

Nikolay Shcherbina

arxiv:0706.4230 v1 · 2007-06-28 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N5E5TIQMGZIITW3DYICQIEHUY6}

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	2026-05-18T03:33:14.507337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f49d9a20c365089db63c2050410f4c7b46aa744f242d490be071cef58302821

Aliases

arxiv: 0706.4230 · arxiv_version: 0706.4230v1 · doi: 10.48550/arxiv.0706.4230 · pith_short_12: N5E5TIQMGZII · pith_short_16: N5E5TIQMGZIITW3D · pith_short_8: N5E5TIQM

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/N5E5TIQMGZIITW3DYICQIEHUY6 \
  | 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: 6f49d9a20c365089db63c2050410f4c7b46aa744f242d490be071cef58302821

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49577565d940126b5dedced9ea0203a762e59cb34b637636c7b72ba7141b58c6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.CV",
    "submitted_at": "2007-06-28T13:37:41Z",
    "title_canon_sha256": "6404a23a973b1c1a1d89ae0f741176b337a6dc58d6236649479ee58c13441d82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0706.4230",
    "kind": "arxiv",
    "version": 1
  }
}