Pith Number

pith:YVJBTTKW

pith:2026:YVJBTTKW6QZRZ5ZEZKTAZ7G2K2

not attested not anchored not stored refs pending

A quadratic-scaling algorithm with guaranteed convergence for quantum coupled-channel calculations

Hubert J. J\'o\'zwiak, Md Muktadir Rahman, Timur V. Tscherbul

arxiv:2601.01159 v2 · 2026-01-03 · physics.chem-ph · physics.atom-ph · physics.comp-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{YVJBTTKW6QZRZ5ZEZKTAZ7G2K2}

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	2026-07-09T00:19:12.420072Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c55219cd56f4331cf724caa60cfcda5694ad29a64a1c0ecc2a23b725eea7ad94

Aliases

arxiv: 2601.01159 · arxiv_version: 2601.01159v2 · doi: 10.48550/arxiv.2601.01159 · pith_short_12: YVJBTTKW6QZR · pith_short_16: YVJBTTKW6QZRZ5ZE · pith_short_8: YVJBTTKW

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/YVJBTTKW6QZRZ5ZEZKTAZ7G2K2 \
  | 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: c55219cd56f4331cf724caa60cfcda5694ad29a64a1c0ecc2a23b725eea7ad94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f4dadc1783a0629157d813bae729fc49f4c505e1af577a17ab165df66340818",
    "cross_cats_sorted": [
      "physics.atom-ph",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2026-01-03T11:22:59Z",
    "title_canon_sha256": "c02579721d6033862ffc6a6d1ee9e6adb529e0c862602bb05f58dd59a5981d90"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.01159",
    "kind": "arxiv",
    "version": 2
  }
}