Pith Number

pith:6Y2NWGDD

pith:2025:6Y2NWGDDKT5654WYHNZSDS7GSO

not attested not anchored not stored refs pending

Demonstration of a Compatibility-Based Childcare Support Service using Quantum Annealing

Masayuki Ohzeki, Rima Sato, Rumiko Honda, Taisei Takabayashi, Yuuma Matsumoto

arxiv:2509.08520 v1 · 2025-09-10 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6Y2NWGDDKT5654WYHNZSDS7GSO}

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	2026-07-05T12:08:31.656701Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f634db186354fbeef2d83b7321cbe693aafec51e38f10c529c946b7e83780033

Aliases

arxiv: 2509.08520 · arxiv_version: 2509.08520v1 · doi: 10.48550/arxiv.2509.08520 · pith_short_12: 6Y2NWGDDKT56 · pith_short_16: 6Y2NWGDDKT5654WY · pith_short_8: 6Y2NWGDD

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/6Y2NWGDDKT5654WYHNZSDS7GSO \
  | 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: f634db186354fbeef2d83b7321cbe693aafec51e38f10c529c946b7e83780033

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3af3811915188dd7bc7ace975d8e51f51929b2245494bbf19b67c08aeccaabbc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-09-10T11:57:18Z",
    "title_canon_sha256": "9cd9e68be8228c0ba653825ef18eecdca76b3f047b575caaaf024d58eb95a57a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.08520",
    "kind": "arxiv",
    "version": 1
  }
}