Pith Number

pith:HPBHZQUM

pith:2019:HPBHZQUM3J5DT3CM36ITQZFFKE

not attested not anchored not stored refs pending

High-Resolution Nuclear Magnetic Resonance Spectroscopy With Picomole Sensitivity by Hyperpolarisation On A Chip

James Eills, Malcolm H. Levitt, Manvendra Sharma, Marcel Utz, Matheus Rossetto, William Hale

arxiv:1901.07065 v3 · 2019-01-21 · physics.chem-ph · physics.app-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{HPBHZQUM3J5DT3CM36ITQZFFKE}

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	2026-05-17T23:45:57.811272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bc27cc28cda7a39ec4cdf913864a5510bd1e70f934f628c5b12ae44ef9d0fa1

Aliases

arxiv: 1901.07065 · arxiv_version: 1901.07065v3 · doi: 10.48550/arxiv.1901.07065 · pith_short_12: HPBHZQUM3J5D · pith_short_16: HPBHZQUM3J5DT3CM · pith_short_8: HPBHZQUM

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/HPBHZQUM3J5DT3CM36ITQZFFKE \
  | 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: 3bc27cc28cda7a39ec4cdf913864a5510bd1e70f934f628c5b12ae44ef9d0fa1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7247c05d5f1ef456d3ff3c50aa4e9fab555532d33bd24a1a226045b11fe82f5",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2019-01-21T20:17:25Z",
    "title_canon_sha256": "682bb0413a440920ee0bac2aabc9d96be0416f01084c68b57e7425a101126d29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.07065",
    "kind": "arxiv",
    "version": 3
  }
}