Pith Number

pith:S6OC24NF

pith:2017:S6OC24NF63W7HWQ3YHGD2WZPVF

not attested not anchored not stored refs pending

Warped cones, (non-)rigidity, and piecewise properties, with a joint appendix with Dawid Kielak

Damian Sawicki

arxiv:1707.02960 v2 · 2017-07-10 · math.MG · math.DS · math.GR · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S6OC24NF63W7HWQ3YHGD2WZPVF}

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	2026-05-17T23:48:57.475181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

979c2d71a5f6edf3da1bc1cc3d5b2fa97dfcd8d79af2de79e20df06ae70466d3

Aliases

arxiv: 1707.02960 · arxiv_version: 1707.02960v2 · doi: 10.48550/arxiv.1707.02960 · pith_short_12: S6OC24NF63W7 · pith_short_16: S6OC24NF63W7HWQ3 · pith_short_8: S6OC24NF

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/S6OC24NF63W7HWQ3YHGD2WZPVF \
  | 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: 979c2d71a5f6edf3da1bc1cc3d5b2fa97dfcd8d79af2de79e20df06ae70466d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "81ad4517d8c09b224df0130d38bc5aef1f37c6ccc82f5e3d6bcbe88fbfe2a0ec",
    "cross_cats_sorted": [
      "math.DS",
      "math.GR",
      "math.OA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2017-07-10T17:43:15Z",
    "title_canon_sha256": "70443edcc7b2c99024546adecf6526c78b008ad01f924d540c3ab0adee56ea32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.02960",
    "kind": "arxiv",
    "version": 2
  }
}