Pith Number

pith:XHQFEB3H

pith:2025:XHQFEB3HNDWZSLG5H4KNYJOEFU

not attested not anchored not stored refs pending

Controlling Effective Hamiltonians: Broadband Pulsed Dynamic Nuclear Polarization by Constrained Random Walk and Non-linear Optimization

Anders B. Nielsen, David L. Goodwin, Filip V. Jensen, Jose P. Carvalho, Niels Chr. Nielsen, Nino Wili, Thomas S. Untidt, Zdenek Tosner

arxiv:2506.18101 v1 · 2025-06-22 · physics.chem-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{XHQFEB3HNDWZSLG5H4KNYJOEFU}

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	2026-07-05T11:25:28.540162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9e052076768ed992cdd3f14dc25c42d10a363bb6d311201a2f52bfe91aa176a

Aliases

arxiv: 2506.18101 · arxiv_version: 2506.18101v1 · doi: 10.48550/arxiv.2506.18101 · pith_short_12: XHQFEB3HNDWZ · pith_short_16: XHQFEB3HNDWZSLG5 · pith_short_8: XHQFEB3H

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/XHQFEB3HNDWZSLG5H4KNYJOEFU \
  | 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: b9e052076768ed992cdd3f14dc25c42d10a363bb6d311201a2f52bfe91aa176a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a34991ca61bff911b1f327dc20700ec26adff506fd4e769354a0188ccf0a6cf",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2025-06-22T17:11:25Z",
    "title_canon_sha256": "ade24ed550cbdbdb791f5be67d594d330d5bdda29a0481ae41ac983e5bd65644"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.18101",
    "kind": "arxiv",
    "version": 1
  }
}