Pith Number

pith:BPRGRYIA

pith:2004:BPRGRYIA45NCYG7A6W64KRCDRJ

not attested not anchored not stored refs pending

NMR Quantum Information Processing

Chandrasekhar Ramanathan, David G. Cory, Isaac Chuang, Matthias Steffen, Nicolas Boulant, Zhiying Chen

arxiv:quant-ph/0408166 v1 · 2004-08-26 · 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{BPRGRYIA45NCYG7A6W64KRCDRJ}

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	2026-07-04T14:49:15.770477Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0be268e100e75a2c1be0f5bdc544438a56a5f863d5ca254ccf36ee7b9fa019b0

Aliases

arxiv: quant-ph/0408166 · arxiv_version: quant-ph/0408166v1 · doi: 10.48550/arxiv.quant-ph/0408166 · pith_short_12: BPRGRYIA45NC · pith_short_16: BPRGRYIA45NCYG7A · pith_short_8: BPRGRYIA

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/BPRGRYIA45NCYG7A6W64KRCDRJ \
  | 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: 0be268e100e75a2c1be0f5bdc544438a56a5f863d5ca254ccf36ee7b9fa019b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4022bff28e428e69afe22b72b15301b05fe9cb133075371a14a7c6797d19f775",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-08-26T14:02:57Z",
    "title_canon_sha256": "d2276377916bba667a938bf8396d91b413adf75f2ac45377d2a22d3e6b1a9f80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0408166",
    "kind": "arxiv",
    "version": 1
  }
}