Pith Number

pith:XHAW2MZ2

pith:2019:XHAW2MZ2KXP4IQEFDMGO572ZTY

not attested not anchored not stored refs pending

Extending editing capabilities of subdivision schemes by refinement of point-normal pairs

Evgeny Lipovetsky, Nira Dyn

arxiv:1908.06154 v1 · 2019-08-16 · 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{XHAW2MZ2KXP4IQEFDMGO572ZTY}

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	2026-07-04T23:58:12.916094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9c16d333a55dfc440851b0ceeff599e120ed1b32a9700720f173cac694552e4

Aliases

arxiv: 1908.06154 · arxiv_version: 1908.06154v1 · doi: 10.48550/arxiv.1908.06154 · pith_short_12: XHAW2MZ2KXP4 · pith_short_16: XHAW2MZ2KXP4IQEF · pith_short_8: XHAW2MZ2

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/XHAW2MZ2KXP4IQEFDMGO572ZTY \
  | 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: b9c16d333a55dfc440851b0ceeff599e120ed1b32a9700720f173cac694552e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f82f10d71881375c22ddc33995c20d3e5411a9f53d111530ed3969f311fc497",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GR",
    "submitted_at": "2019-08-16T20:23:54Z",
    "title_canon_sha256": "26a557668cf1cdf88427db5d586f6efff1a59801f25948b582e1188f0e3603c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06154",
    "kind": "arxiv",
    "version": 1
  }
}