Pith Number

pith:UR3EJN4F

pith:2012:UR3EJN4FWETYOOW4YS5LDWN4GJ

not attested not anchored not stored refs pending

Time-optimal Unitary Operations in Ising Chains II: Unequal Couplings and Fixed Fidelity

A. Carlini, T. Koike

arxiv:1209.0404 v1 · 2012-09-03 · 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{UR3EJN4FWETYOOW4YS5LDWN4GJ}

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	2026-05-18T02:32:39.251307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a47644b785b127873adcc4bab1d9bc3260328fa3acf5156a113dafd9b7fba94b

Aliases

arxiv: 1209.0404 · arxiv_version: 1209.0404v1 · doi: 10.48550/arxiv.1209.0404 · pith_short_12: UR3EJN4FWETY · pith_short_16: UR3EJN4FWETYOOW4 · pith_short_8: UR3EJN4F

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/UR3EJN4FWETYOOW4YS5LDWN4GJ \
  | 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: a47644b785b127873adcc4bab1d9bc3260328fa3acf5156a113dafd9b7fba94b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd09a68eb83435accd832115b6355dbd86a4ed1d71cd7061904856e05873e993",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-09-03T16:46:07Z",
    "title_canon_sha256": "7bd2fe2d51e0b2b66e2632e4871c132dfc6f3731bf2a79d341df2c711e7eb896"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.0404",
    "kind": "arxiv",
    "version": 1
  }
}