Pith Number

pith:OKEO6IG6

pith:2018:OKEO6IG6KELTFGG7U7QR7ETJTL

not attested not anchored not stored refs pending

$C^1$ analysis of 2D subdivision schemes refining point-normal pairs with the circle average

Evgeny Lipovetsky, Nira Dyn

arxiv:1802.07555 v2 · 2018-02-21 · cs.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OKEO6IG6KELTFGG7U7QR7ETJTL}

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	2026-05-18T00:15:42.832280Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7288ef20de51173298dfa7e11f92699aff01233ec8799b94f0b37b51711bc83c

Aliases

arxiv: 1802.07555 · arxiv_version: 1802.07555v2 · doi: 10.48550/arxiv.1802.07555 · pith_short_12: OKEO6IG6KELT · pith_short_16: OKEO6IG6KELTFGG7 · pith_short_8: OKEO6IG6

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/OKEO6IG6KELTFGG7U7QR7ETJTL \
  | 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: 7288ef20de51173298dfa7e11f92699aff01233ec8799b94f0b37b51711bc83c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c617659da77ca936614f27dcbe0c609cbffd414b7cdbb45045fafdc1b201e02",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2018-02-21T13:16:56Z",
    "title_canon_sha256": "2e31cf0a137f9ad9bf023c3ba79406bb33a2c03062df85377a8e7c3ca4e27481"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.07555",
    "kind": "arxiv",
    "version": 2
  }
}