Pith Number

pith:IHCIONLE

pith:2016:IHCIONLEDYFTRWC2IHEN6EW5KG

not attested not anchored not stored refs pending

All smooth four-dimensional Schoenflies balls are geometrically simply connected

Valentin Po\'enaru

arxiv:1609.05094 v1 · 2016-09-15 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IHCIONLEDYFTRWC2IHEN6EW5KG}

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	2026-05-18T01:04:31.576355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41c48735641e0b38d85a41c8df12dd519802ce488a17bf4b425e23744ad96276

Aliases

arxiv: 1609.05094 · arxiv_version: 1609.05094v1 · doi: 10.48550/arxiv.1609.05094 · pith_short_12: IHCIONLEDYFT · pith_short_16: IHCIONLEDYFTRWC2 · pith_short_8: IHCIONLE

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/IHCIONLEDYFTRWC2IHEN6EW5KG \
  | 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: 41c48735641e0b38d85a41c8df12dd519802ce488a17bf4b425e23744ad96276

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d708a944146fad84b8274ba5176bc383da9f663e88d2a25b3a5c0f7c9e8d0041",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2016-09-15T12:22:54Z",
    "title_canon_sha256": "e4ffa659211b0c96591bc7e0d6ec591f3df7e10713f8fe001b6165c4d50bdee4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.05094",
    "kind": "arxiv",
    "version": 1
  }
}