Pith Number

pith:AZQGH2IO

pith:2004:AZQGH2IOT4OG6ZXQHOWYAMWZTU

not attested not anchored not stored refs pending

Covariant quantum measurements which maximize the likelihood

Giacomo Mauro D'Ariano, Giulio Chiribella, Massimiliano Federico Sacchi, Paolo Perinotti

arxiv:quant-ph/0403083 v1 · 2004-03-10 · 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{AZQGH2IOT4OG6ZXQHOWYAMWZTU}

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	2026-07-04T15:00:17.126908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

066063e90e9f1c6f66f03bad8032d99d17460b8580834321e22e101e6cc60e49

Aliases

arxiv: quant-ph/0403083 · arxiv_version: quant-ph/0403083v1 · doi: 10.48550/arxiv.quant-ph/0403083 · pith_short_12: AZQGH2IOT4OG · pith_short_16: AZQGH2IOT4OG6ZXQ · pith_short_8: AZQGH2IO

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/AZQGH2IOT4OG6ZXQHOWYAMWZTU \
  | 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: 066063e90e9f1c6f66f03bad8032d99d17460b8580834321e22e101e6cc60e49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0733216eaa2c4483a22b0af136699d6a11d5857bef5be11f5b595cc7f20b8ef0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-03-10T18:01:31Z",
    "title_canon_sha256": "94911578a241c00b54e7297347680696ab1ff18f19ced23fd4cc4f4c46aac45b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0403083",
    "kind": "arxiv",
    "version": 1
  }
}