Pith Number

pith:NTB5ALWV

pith:2021:NTB5ALWVJDNKXWRKGHDD55OPK3

not attested not anchored not stored refs pending

Isometry invariant shape recognition of projectively perturbed point clouds by the mergegram extending 0D persistence

Vitaliy Kurlin, Yury Elkin

arxiv:2111.04617 v1 · 2021-11-08 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NTB5ALWVJDNKXWRKGHDD55OPK3}

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	2026-07-05T03:30:01.926736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cc3d02ed548daabda2a31c63ef5cf56f66faf183cae2506c5af6abaf9db8312

Aliases

arxiv: 2111.04617 · arxiv_version: 2111.04617v1 · doi: 10.48550/arxiv.2111.04617 · pith_short_12: NTB5ALWVJDNK · pith_short_16: NTB5ALWVJDNKXWRK · pith_short_8: NTB5ALWV

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/NTB5ALWVJDNKXWRKGHDD55OPK3 \
  | 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: 6cc3d02ed548daabda2a31c63ef5cf56f66faf183cae2506c5af6abaf9db8312

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd534af31ccb0100fa22025eec2e21d2a064e6b6e047e11189d4412099da03b4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2021-11-08T16:39:05Z",
    "title_canon_sha256": "3a3cd11dfe923d574974ae2ef2c3353df105f6418e14b0af60722b1ef63a248e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.04617",
    "kind": "arxiv",
    "version": 1
  }
}