Pith Number

pith:OGXLO7H4

pith:2009:OGXLO7H43CZA22PJ6GN2NIJ2XW

not attested not anchored not stored refs pending

Optical detection of NMR J-spectra at zero magnetic field

A. Pines, C.W. Crawford, D. Budker, D.E. Wemmer, J. Kitching, M.P. Ledbetter, S. Knappe

arxiv:0901.4069 v1 · 2009-01-26 · 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{OGXLO7H43CZA22PJ6GN2NIJ2XW}

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	2026-05-18T02:14:55.813506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71aeb77cfcd8b20d69e9f19ba6a13abd8d38e468a4a87e2fd8738c06f43fe0af

Aliases

arxiv: 0901.4069 · arxiv_version: 0901.4069v1 · doi: 10.48550/arxiv.0901.4069 · pith_short_12: OGXLO7H43CZA · pith_short_16: OGXLO7H43CZA22PJ · pith_short_8: OGXLO7H4

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/OGXLO7H43CZA22PJ6GN2NIJ2XW \
  | 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: 71aeb77cfcd8b20d69e9f19ba6a13abd8d38e468a4a87e2fd8738c06f43fe0af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbd1daa4922b12d6cfe17ce536e2584ba689b81200b263d477ef7491ecaa7181",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2009-01-26T18:47:34Z",
    "title_canon_sha256": "f80d74266d6013cb7054aad76d64986ede3829a3455e70d46c34761e6e4ef43e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.4069",
    "kind": "arxiv",
    "version": 1
  }
}