Pith Number

pith:SRMQULE4

pith:2011:SRMQULE4SFYLQXP2R6LE74WOW2

not attested not anchored not stored refs pending

Parahydrogen enhanced zero-field nuclear magnetic resonance

Alex Pines, Dmitry Budker, Gwendal Kervern, John Kitching, Micah Ledbetter, Paul Ganssle, Svenja Knappe, Thomas Theis

arxiv:1102.5378 v1 · 2011-02-26 · physics.chem-ph · physics.atom-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{SRMQULE4SFYLQXP2R6LE74WOW2}

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	2026-05-18T02:03:04.439486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94590a2c9c9170b85dfa8f964ff2ceb6954c82932670217c1fe22e34a146e841

Aliases

arxiv: 1102.5378 · arxiv_version: 1102.5378v1 · doi: 10.48550/arxiv.1102.5378 · pith_short_12: SRMQULE4SFYL · pith_short_16: SRMQULE4SFYLQXP2 · pith_short_8: SRMQULE4

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/SRMQULE4SFYLQXP2R6LE74WOW2 \
  | 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: 94590a2c9c9170b85dfa8f964ff2ceb6954c82932670217c1fe22e34a146e841

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32d79764e65760c91b38f52b7c0d3768f922a388d1e4a2daf168eec9c742e737",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2011-02-26T00:08:18Z",
    "title_canon_sha256": "55ae78a69cff58ec04c10b6812dbbc504d7086f8390f11f87cf8527fa88789b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.5378",
    "kind": "arxiv",
    "version": 1
  }
}