Pith Number

pith:X7DYG5CR

pith:1997:X7DYG5CRUXM5S62YQOOLTJLPGB

not attested not anchored not stored refs pending

Nuclear magnetic resonance spectroscopy: An experimentally accessible paradigm for quantum computing

David G. Cory, Mark D. Price, Timothy F. Havel

arxiv:quant-ph/9709001 v2 · 1997-08-30 · quant-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{X7DYG5CRUXM5S62YQOOLTJLPGB}

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	2026-07-04T16:06:31.050870Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfc7837451a5d9d97b58839cb9a56f306e4abe93954e6c41b1f793faf900ab2d

Aliases

arxiv: quant-ph/9709001 · arxiv_version: quant-ph/9709001v2 · doi: 10.48550/arxiv.quant-ph/9709001 · pith_short_12: X7DYG5CRUXM5 · pith_short_16: X7DYG5CRUXM5S62Y · pith_short_8: X7DYG5CR

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/X7DYG5CRUXM5S62YQOOLTJLPGB \
  | 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: bfc7837451a5d9d97b58839cb9a56f306e4abe93954e6c41b1f793faf900ab2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdd72b53adcabdeec2c5af2197bbe2d8c9de8f3fe175d539216dd9ad459d47ec",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1997-08-30T15:42:10Z",
    "title_canon_sha256": "797dd0877ee982423c83766402286a17fee22f2a7449b0cc3f0aa7f38d161c03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9709001",
    "kind": "arxiv",
    "version": 2
  }
}