Pith Number

pith:RBQRLUV6

pith:2026:RBQRLUV6TJUGTRMX5EVOIDWT4I

not attested not anchored not stored refs pending

Geometric Rigidity via Harmonic Twisted Spinors

Francesco Bei, Simone Cecchini

arxiv:2606.19567 v1 · 2026-06-17 · math.DG · 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{RBQRLUV6TJUGTRMX5EVOIDWT4I}

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	2026-06-19T16:12:29.076735Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

886115d2be9a6869c597e92ae40ed3e21f085cc6102684c23ad2913117d121ef

Aliases

arxiv: 2606.19567 · arxiv_version: 2606.19567v1 · doi: 10.48550/arxiv.2606.19567 · pith_short_12: RBQRLUV6TJUG · pith_short_16: RBQRLUV6TJUGTRMX · pith_short_8: RBQRLUV6

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/RBQRLUV6TJUGTRMX5EVOIDWT4I \
  | 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: 886115d2be9a6869c597e92ae40ed3e21f085cc6102684c23ad2913117d121ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77f8a675e70f5b0588744ab775003e2305c97bd79eb5fec6ddbf19b10a95666e",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2026-06-17T20:09:54Z",
    "title_canon_sha256": "a696c97f1f9b19ab68ad0690d3ffde77a686e1f2e56e2d012197c9df4f064847"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.19567",
    "kind": "arxiv",
    "version": 1
  }
}