Pith Number

pith:OEQPOO57

pith:1998:OEQPOO57JR2ARRXCHOCVKEWDNF

not attested not anchored not stored refs pending

Noise, errors and information in quantum amplification

C. Macchiavello, G. M. D'Ariano, Italy), L. Maccone (Dipartimento di Fisica "A. Volta", Universita' di Pavia

arxiv:quant-ph/9801065 v1 · 1998-01-28 · 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{OEQPOO57JR2ARRXCHOCVKEWDNF}

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	2026-05-18T01:37:52.973010Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7120f73bbf4c7408c6e23b855512c3695a15f0bba9d6f14d0249d230d62c5827

Aliases

arxiv: quant-ph/9801065 · arxiv_version: quant-ph/9801065v1 · doi: 10.48550/arxiv.quant-ph/9801065 · pith_short_12: OEQPOO57JR2A · pith_short_16: OEQPOO57JR2ARRXC · pith_short_8: OEQPOO57

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/OEQPOO57JR2ARRXCHOCVKEWDNF \
  | 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: 7120f73bbf4c7408c6e23b855512c3695a15f0bba9d6f14d0249d230d62c5827

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dee8a5ad630b36810094b62aa1354885a9194fef5cd2671fbf8f6f1778078b6b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1998-01-28T18:21:33Z",
    "title_canon_sha256": "057c5de35aba53c03e7ee39440974bfbdbe6e05afdd20b2f72296370f4d1a8e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9801065",
    "kind": "arxiv",
    "version": 1
  }
}