Pith Number

pith:3Z6M7J4J

pith:1998:3Z6M7J4JZ7NPAORZWZHLO5BQPZ

not attested not anchored not stored refs pending

Critique of Protective Measurements

India), INDIA.), Kalpakkam, Madras, N.D. Hari Dass (IMSc, Tabish Qureshi (IGCAR

arxiv:quant-ph/9805012 v5 · 1998-05-04 · 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{3Z6M7J4JZ7NPAORZWZHLO5BQPZ}

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	2026-05-18T04:14:53.865977Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de7ccfa789cfdaf03a39b64eb774307e5aa96603a1c6183098c6fd051842c77b

Aliases

arxiv: quant-ph/9805012 · arxiv_version: quant-ph/9805012v5 · doi: 10.48550/arxiv.quant-ph/9805012 · pith_short_12: 3Z6M7J4JZ7NP · pith_short_16: 3Z6M7J4JZ7NPAORZ · pith_short_8: 3Z6M7J4J

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/3Z6M7J4JZ7NPAORZWZHLO5BQPZ \
  | 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: de7ccfa789cfdaf03a39b64eb774307e5aa96603a1c6183098c6fd051842c77b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f62992fb5f65c2550f01de2125eddf489b3f33f074fae217b80ab73aa1063514",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "1998-05-04T20:23:00Z",
    "title_canon_sha256": "ce547a8dd52a774a87c857b2e18b5d5a6207e0dbc857cde09e63b41abe08110d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9805012",
    "kind": "arxiv",
    "version": 5
  }
}