Pith Number

pith:6H4ZOXUK

pith:2005:6H4ZOXUKYCJCVIX63LQTIBEFHG

not attested not anchored not stored refs pending

Optimal measurements in quantum mechanics

T. Heinonen

arxiv:quant-ph/0508063 v2 · 2005-08-07 · 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{6H4ZOXUKYCJCVIX63LQTIBEFHG}

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	2026-05-18T01:37:57.604524Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1f9975e8ac0922aa2fedae13404853987925c3cc3396bd1627a70b0daf7d289

Aliases

arxiv: quant-ph/0508063 · arxiv_version: quant-ph/0508063v2 · doi: 10.48550/arxiv.quant-ph/0508063 · pith_short_12: 6H4ZOXUKYCJC · pith_short_16: 6H4ZOXUKYCJCVIX6 · pith_short_8: 6H4ZOXUK

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/6H4ZOXUKYCJCVIX63LQTIBEFHG \
  | 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: f1f9975e8ac0922aa2fedae13404853987925c3cc3396bd1627a70b0daf7d289

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a38be82dfe672bf2a5d7e02063c5f31bd209f5fd88d49edeb01be1aa74e5350d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2005-08-07T19:56:00Z",
    "title_canon_sha256": "e9aff8af9e7d61e5d2b01445f4c500d99d966b078cca7f0bad05b4da8619e889"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0508063",
    "kind": "arxiv",
    "version": 2
  }
}