Pith Number

pith:4DQ7JLSP

pith:2020:4DQ7JLSPDE3SK4K4UIL4NO5NKW

not attested not anchored not stored refs pending

Optimizing Geometry Compression using Quantum Annealing

Claudia Linnhoff-Popien, Markus Friedrich, Sebastian Feld

arxiv:2003.13253 v1 · 2020-03-30 · quant-ph · cs.CG · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4DQ7JLSPDE3SK4K4UIL4NO5NKW}

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	2026-07-05T00:51:13.871390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0e1f4ae4f193725715ca217c6bbad55b5650a8cb0679eb823a58593e41d123c

Aliases

arxiv: 2003.13253 · arxiv_version: 2003.13253v1 · doi: 10.48550/arxiv.2003.13253 · pith_short_12: 4DQ7JLSPDE3S · pith_short_16: 4DQ7JLSPDE3SK4K4 · pith_short_8: 4DQ7JLSP

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/4DQ7JLSPDE3SK4K4UIL4NO5NKW \
  | 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: e0e1f4ae4f193725715ca217c6bbad55b5650a8cb0679eb823a58593e41d123c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1ab5b746e04fc426ff174b4737642185848d7704520b9bd8eb1fb029f5c24ff",
    "cross_cats_sorted": [
      "cs.CG",
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-03-30T07:56:34Z",
    "title_canon_sha256": "64373d1607675d21334d55d772e07fd0df3667607c926c4e0a5580189a941c1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.13253",
    "kind": "arxiv",
    "version": 1
  }
}