Pith Number

pith:RFAJO5WT

pith:2015:RFAJO5WTOLPEWQY4CZYXTO6YUC

not attested not anchored not stored refs pending

Homology Computation of Large Point Clouds using Quantum Annealing

Hedayat Alghassi, Raouf Dridi

arxiv:1512.09328 v3 · 2015-12-23 · quant-ph · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RFAJO5WTOLPEWQY4CZYXTO6YUC}

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	2026-05-18T01:12:55.072685Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89409776d372de4b431c167179bbd8a081dd1a8a521ff73151a77f103c4a2374

Aliases

arxiv: 1512.09328 · arxiv_version: 1512.09328v3 · doi: 10.48550/arxiv.1512.09328 · pith_short_12: RFAJO5WTOLPE · pith_short_16: RFAJO5WTOLPEWQY4 · pith_short_8: RFAJO5WT

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/RFAJO5WTOLPEWQY4CZYXTO6YUC \
  | 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: 89409776d372de4b431c167179bbd8a081dd1a8a521ff73151a77f103c4a2374

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b9d8704417ab31fb85d3e374c8a62a576d47dc3483fac44e7ab23494159bbc4",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-12-23T22:50:09Z",
    "title_canon_sha256": "d82ed7e1ef2195d50cdf86d15c041728daaa41745888f79116ed3b1310ca7ca6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.09328",
    "kind": "arxiv",
    "version": 3
  }
}