Pith Number

pith:M7PDNBWU

pith:2002:M7PDNBWU7LGLCEUGP5JY3C2ZAT

not attested not anchored not stored refs pending

Fidelity Decay Saturation Level for Initial Eigenstates

David G. Cory, Joseph V. Emerson, Seth Lloyd, Yaakov S. Weinstein

arxiv:quant-ph/0210063 v1 · 2002-10-09 · 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{M7PDNBWU7LGLCEUGP5JY3C2ZAT}

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	2026-07-04T14:48:18.838032Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67de3686d4faccb112867f538d8b5904ddd78d9ca665ac10e55e1f0a7f4317fc

Aliases

arxiv: quant-ph/0210063 · arxiv_version: quant-ph/0210063v1 · doi: 10.48550/arxiv.quant-ph/0210063 · pith_short_12: M7PDNBWU7LGL · pith_short_16: M7PDNBWU7LGLCEUG · pith_short_8: M7PDNBWU

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/M7PDNBWU7LGLCEUGP5JY3C2ZAT \
  | 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: 67de3686d4faccb112867f538d8b5904ddd78d9ca665ac10e55e1f0a7f4317fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45c1170b5ddea89fa5c8104d0757c8d772d23f8ecaa18fc3650e468c735e1ba1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-10-09T21:45:09Z",
    "title_canon_sha256": "91260b58561285521bf7fe30633f549adab61c0e977b86dd1c4e8cbeeb3f8bf4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0210063",
    "kind": "arxiv",
    "version": 1
  }
}