Pith Number

pith:GCLK3SNN

pith:2016:GCLK3SNNCFVUUGMJNUEQBRKSQK

not attested not anchored not stored refs pending

Symmetry breaking for a problem in optimal insulation

Carlo Nitsch, Dorin Bucur, Giuseppe Buttazzo

arxiv:1601.02146 v1 · 2016-01-09 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GCLK3SNNCFVUUGMJNUEQBRKSQK}

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	2026-05-18T01:23:07.146236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3096adc9ad116b4a19896d0900c55282ac2218f2e15e23fc114fb5b4abb230d0

Aliases

arxiv: 1601.02146 · arxiv_version: 1601.02146v1 · doi: 10.48550/arxiv.1601.02146 · pith_short_12: GCLK3SNNCFVU · pith_short_16: GCLK3SNNCFVUUGMJ · pith_short_8: GCLK3SNN

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/GCLK3SNNCFVUUGMJNUEQBRKSQK \
  | 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: 3096adc9ad116b4a19896d0900c55282ac2218f2e15e23fc114fb5b4abb230d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19e92121156811b19e5835ad01db29ae0b3c6fa7054d205f63bc8a7c2dcc8e97",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2016-01-09T19:04:36Z",
    "title_canon_sha256": "60e9514d85c5ae6443bc3dd93b9add63597be221b5a1d93e116267a8a173ad8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.02146",
    "kind": "arxiv",
    "version": 1
  }
}