Pith Number

pith:ZLWU2KR6

pith:2019:ZLWU2KR6XOKV4DUWS2YX2TWFT7

not attested not anchored not stored refs pending

Long-lived state in a four-spin system hyperpolarized at room temperature

Akinori Kagawa, Koichiro Miyanishi, Makoto Motoyama, Makoto Negoro, Masahiro Kitagawa, Naoki Ichijo

arxiv:1908.08699 v1 · 2019-08-23 · quant-ph · 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{ZLWU2KR6XOKV4DUWS2YX2TWFT7}

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	2026-07-04T23:59:16.953227Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

caed4d2a3ebb955e0e9696b17d4ec59fc8c5947c5ca7a38d1dbd5574ab91e663

Aliases

arxiv: 1908.08699 · arxiv_version: 1908.08699v1 · doi: 10.48550/arxiv.1908.08699 · pith_short_12: ZLWU2KR6XOKV · pith_short_16: ZLWU2KR6XOKV4DUW · pith_short_8: ZLWU2KR6

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/ZLWU2KR6XOKV4DUWS2YX2TWFT7 \
  | 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: caed4d2a3ebb955e0e9696b17d4ec59fc8c5947c5ca7a38d1dbd5574ab91e663

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9836667e117e3e23ae9a535b8ee750920585ff02b13cf2f5d20c8838a72ae912",
    "cross_cats_sorted": [
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-08-23T07:13:46Z",
    "title_canon_sha256": "186b147d6d6c725857cb6baf68dd6724a282f27ed0fe5c988c91e6333f4d14f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08699",
    "kind": "arxiv",
    "version": 1
  }
}