Pith Number

pith:UGFXGWK5

pith:2015:UGFXGWK5P56H34GS7U54VALWRJ

not attested not anchored not stored refs pending

Multivariate Topology Simplification

Amit Chattopadhyay, David Duke, Hamish Carr, Osamu Saeki, Zhao Geng

arxiv:1509.04465 v1 · 2015-09-15 · 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{UGFXGWK5P56H34GS7U54VALWRJ}

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	2026-05-18T01:32:58.846737Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a18b73595d7f7c7df0d2fd3bca81768a5277a66713ffbaed4923f8019fbcf744

Aliases

arxiv: 1509.04465 · arxiv_version: 1509.04465v1 · doi: 10.48550/arxiv.1509.04465 · pith_short_12: UGFXGWK5P56H · pith_short_16: UGFXGWK5P56H34GS · pith_short_8: UGFXGWK5

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/UGFXGWK5P56H34GS7U54VALWRJ \
  | 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: a18b73595d7f7c7df0d2fd3bca81768a5277a66713ffbaed4923f8019fbcf744

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75bdd963f4bccdabdfb5f859689b24bafeb23e3068382b7d2be21343849f1e4d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2015-09-15T09:42:59Z",
    "title_canon_sha256": "8a9dd26d9cee960a16c30e6461b9c08b4c65ca63b6b37ce730a627fd7b7014fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.04465",
    "kind": "arxiv",
    "version": 1
  }
}