Pith Number

pith:KXTTSU2S

pith:2002:KXTTSU2SXFO74BLBU2FNNO53CP

not attested not anchored not stored refs pending

A dilemma in representing observables in quantum mechanics

D. A. Dubin, J.-P. Pellonpaa, M. A. Hennings, P. Lahti

arxiv:quant-ph/0206168 v1 · 2002-06-24 · 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{KXTTSU2SXFO74BLBU2FNNO53CP}

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	2026-05-18T04:39:08.626254Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55e7395352b95dfe0561a68ad6bbbb13eb7b4a97dbf119813a9e499ae58ecd8a

Aliases

arxiv: quant-ph/0206168 · arxiv_version: quant-ph/0206168v1 · doi: 10.48550/arxiv.quant-ph/0206168 · pith_short_12: KXTTSU2SXFO7 · pith_short_16: KXTTSU2SXFO74BLB · pith_short_8: KXTTSU2S

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/KXTTSU2SXFO74BLBU2FNNO53CP \
  | 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: 55e7395352b95dfe0561a68ad6bbbb13eb7b4a97dbf119813a9e499ae58ecd8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c1c6851487f27be2697a943b5c7c2d65451d1e6ff981317b024ab7c41c959c0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-06-24T08:17:08Z",
    "title_canon_sha256": "a2b511c91664ccdde346fb33b1be8a824454e747901b5e67d4738002ca38d466"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0206168",
    "kind": "arxiv",
    "version": 1
  }
}