Pith Number

pith:Y53LZVKI

pith:2017:Y53LZVKISYMAFJTBXRVIQL3DAO

not attested not anchored not stored refs pending

Continuous Optimization of Adaptive Quadtree Structures

Jun Wu

arxiv:1712.04523 v2 · 2017-12-12 · math.NA · cs.CE · cs.GR · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y53LZVKISYMAFJTBXRVIQL3DAO}

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	2026-05-18T00:15:30.286187Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c776bcd548961802a661bc6a882f63038a13375486809d3768d3e15ec508617e

Aliases

arxiv: 1712.04523 · arxiv_version: 1712.04523v2 · doi: 10.48550/arxiv.1712.04523 · pith_short_12: Y53LZVKISYMA · pith_short_16: Y53LZVKISYMAFJTB · pith_short_8: Y53LZVKI

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/Y53LZVKISYMAFJTBXRVIQL3DAO \
  | 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: c776bcd548961802a661bc6a882f63038a13375486809d3768d3e15ec508617e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbfe2a4f9eba8ce2cc9f1dddeee1126e22f1a90b2171d127e8697cd3004f9310",
    "cross_cats_sorted": [
      "cs.CE",
      "cs.GR",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-12-12T21:13:36Z",
    "title_canon_sha256": "1f4a61f7b6b0e815d89fb9b136737993d52970d3d9df14b46b5b017f4f0bba81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.04523",
    "kind": "arxiv",
    "version": 2
  }
}