Pith Number

pith:MQ3GHX7F

pith:1999:MQ3GHX7F5YKCTFCISCSNGCZ6J5

not attested not anchored not stored refs pending

Kirchhoff's Rule for Quantum Wires. II: The Inverse Problem with Possible Applications to Quantum Computers

Robert Schrader, Vadim Kostrykin

arxiv:quant-ph/9910053 v1 · 1999-10-13 · 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{MQ3GHX7F5YKCTFCISCSNGCZ6J5}

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	2026-05-18T01:37:52.263596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

643663dfe5ee1429944890a4d30b3e4f6fb48d42ba0577402884d21961448a87

Aliases

arxiv: quant-ph/9910053 · arxiv_version: quant-ph/9910053v1 · doi: 10.48550/arxiv.quant-ph/9910053 · pith_short_12: MQ3GHX7F5YKC · pith_short_16: MQ3GHX7F5YKCTFCI · pith_short_8: MQ3GHX7F

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/MQ3GHX7F5YKCTFCISCSNGCZ6J5 \
  | 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: 643663dfe5ee1429944890a4d30b3e4f6fb48d42ba0577402884d21961448a87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4fbb0969c7e3a45a1a1e34b9e13089757e282d53319bdf8f133f13534ace2b4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1999-10-13T18:40:37Z",
    "title_canon_sha256": "a4b0892fbb5d00826a84991b9adbc80199e4280ac4e828da652363cc6f9c3130"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9910053",
    "kind": "arxiv",
    "version": 1
  }
}