Pith Number

pith:FRRELYFV

pith:2002:FRRELYFVS5THSGG7YVR2CMNG7E

not attested not anchored not stored refs pending

Cluster of Dipolar Coupled Spins as a Quantum Memory Storage

A. K. Khitrin, B. M. Fung, V. L. Ermakov

arxiv:quant-ph/0202035 v1 · 2002-02-06 · 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{FRRELYFVS5THSGG7YVR2CMNG7E}

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	2026-05-18T01:38:02.145924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c6245e0b597667918dfc563a131a6f9102d5452db1ac289a5a0ef440a254722

Aliases

arxiv: quant-ph/0202035 · arxiv_version: quant-ph/0202035v1 · doi: 10.48550/arxiv.quant-ph/0202035 · pith_short_12: FRRELYFVS5TH · pith_short_16: FRRELYFVS5THSGG7 · pith_short_8: FRRELYFV

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/FRRELYFVS5THSGG7YVR2CMNG7E \
  | 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: 2c6245e0b597667918dfc563a131a6f9102d5452db1ac289a5a0ef440a254722

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa63997f68c06df71d55d30a6465277d14bb30ebbabdc58a0e14301382a3ff9e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-02-06T17:49:35Z",
    "title_canon_sha256": "9d95256fb75e932436ad97f0e21d9a7b8be3a78e4d8b02819056280fc8c00dd5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0202035",
    "kind": "arxiv",
    "version": 1
  }
}