Pith Number

pith:IL456JOJ

pith:2004:IL456JOJCYGCJQ4WVG3NFV5I5C

not attested not anchored not stored refs pending

A logarithmic-depth quantum carry-lookahead adder

Eric M. Rains, Krysta M. Svore, Samuel A. Kutin, Thomas G. Draper

arxiv:quant-ph/0406142 v1 · 2004-06-20 · 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{IL456JOJCYGCJQ4WVG3NFV5I5C}

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.

Cited by

8 papers in Pith

Efficient Gaussian State Preparation in Quantum Circuits

Simulating high-accuracy nuclear motion Hamiltonians using discrete variable representation and Walsh-Hadamard QROM on fault-tolerant quantum computers

Explicit Block Encodings of Discrete Laplacians with Mixed Boundary Conditions

Magic state cultivation: growing T states as cheap as CNOT gates

Fault-Tolerant Quantum Computing with Trapped Ions: The Walking Cat Architecture

Receipt and verification

First computed	2026-05-18T03:29:14.287006Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42f9df25c9160c24c396a9b6d2d7a8e89355f0802b006308d88558cd25cc70bd

Aliases

arxiv: quant-ph/0406142 · arxiv_version: quant-ph/0406142v1 · doi: 10.48550/arxiv.quant-ph/0406142 · pith_short_12: IL456JOJCYGC · pith_short_16: IL456JOJCYGCJQ4W · pith_short_8: IL456JOJ

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/IL456JOJCYGCJQ4WVG3NFV5I5C \
  | 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: 42f9df25c9160c24c396a9b6d2d7a8e89355f0802b006308d88558cd25cc70bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1bf83db45de8723ace2999eb4a3759886db5ec38667519d06975dc1abb77825",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-06-20T21:52:48Z",
    "title_canon_sha256": "9ffa91b27d8465dad6de8945dd79048157ac040272dfcaa675324c6e2e1283d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0406142",
    "kind": "arxiv",
    "version": 1
  }
}