Pith Number

pith:7ZOMXXEF

pith:2012:7ZOMXXEFTZIRMBQU5TNOWUOMEO

not attested not anchored not stored refs pending

A necessary flexibility condition of a nondegenerate suspension in Lobachevsky 3-space

Dmitriy Slutskiy

arxiv:1208.2793 v1 · 2012-08-14 · math.MG · 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{7ZOMXXEFTZIRMBQU5TNOWUOMEO}

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	2026-05-18T01:55:16.216523Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe5ccbdc859e51160614ecdaeb51cc23b5407c7397b01ff65bf5cc28f3911334

Aliases

arxiv: 1208.2793 · arxiv_version: 1208.2793v1 · doi: 10.48550/arxiv.1208.2793 · pith_short_12: 7ZOMXXEFTZIR · pith_short_16: 7ZOMXXEFTZIRMBQU · pith_short_8: 7ZOMXXEF

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/7ZOMXXEFTZIRMBQU5TNOWUOMEO \
  | 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: fe5ccbdc859e51160614ecdaeb51cc23b5407c7397b01ff65bf5cc28f3911334

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7dbf70f77fb7bf0a67214184e6db3832211fa87e079a74cce591626ede771677",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2012-08-14T07:18:04Z",
    "title_canon_sha256": "2769461475c3a88d6bb99bafcd2ebd05933e2773a0a4e036f4c2ee66ed7039c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.2793",
    "kind": "arxiv",
    "version": 1
  }
}